Common Weakness Enumeration

CWE-367

Allowed

Time-of-check Time-of-use (TOCTOU) Race Condition

Abstraction: Base · Status: Incomplete

API response cwe.mitre.org

The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check.

1064 vulnerabilities reference this CWE, most recent first.

GHSA-8G75-Q649-6PV6

Vulnerability from github – Published: 2026-03-12 14:21 – Updated: 2026-04-06 22:37
VLAI
Summary
OpenClaw's system.run approvals did not bind mutable script operands across approval and execution
Details

OpenClaw's system.run approval flow did not bind mutable interpreter-style script operands across approval and execution.

A caller could obtain approval for an execution such as sh ./script.sh, rewrite the approved script before execution, and then execute different content under the previously approved command shape. The approved argv values remained the same, but the mutable script operand content could drift after approval.

Latest published npm version verified vulnerable: 2026.3.7

The initial March 7, 2026 fix in c76d29208bf6a7f058d2cf582519d28069e42240 added approval binding for shell scripts and a narrow interpreter set, but follow-up maintainer review on March 8, 2026 found that bun and deno script operands still did not produce mutableFileOperand snapshots.

A complete fix shipped on March 9, 2026 in cf3a479bd1204f62eef7dd82b4aa328749ae6c91, which binds approved bun and deno run script operands to on-disk file snapshots and denies post-approval script drift before execution.

Affected Packages / Versions

  • Package: openclaw (npm)
  • Affected versions: <= 2026.3.7
  • Patched version: 2026.3.8

Fix Commit(s)

  • c76d29208bf6a7f058d2cf582519d28069e42240
  • cf3a479bd1204f62eef7dd82b4aa328749ae6c91

Release Verification

  • npm 2026.3.7 remains vulnerable.
  • npm 2026.3.8 contains the completed fix.

Thanks @tdjackey for reporting.

Severity
6.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
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{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 2026.3.7"
      },
      "package": {
        "ecosystem": "npm",
        "name": "openclaw"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2026.3.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-32921"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-285",
      "CWE-367"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-03-12T14:21:28Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "OpenClaw\u0027s `system.run` approval flow did not bind mutable interpreter-style script operands across approval and execution.\n\nA caller could obtain approval for an execution such as `sh ./script.sh`, rewrite the approved script before execution, and then execute different content under the previously approved command shape. The approved `argv` values remained the same, but the mutable script operand content could drift after approval.\n\nLatest published npm version verified vulnerable: `2026.3.7`\n\nThe initial March 7, 2026 fix in `c76d29208bf6a7f058d2cf582519d28069e42240` added approval binding for shell scripts and a narrow interpreter set, but follow-up maintainer review on March 8, 2026 found that `bun` and `deno` script operands still did not produce `mutableFileOperand` snapshots.\n\nA complete fix shipped on March 9, 2026 in `cf3a479bd1204f62eef7dd82b4aa328749ae6c91`, which binds approved `bun` and `deno run` script operands to on-disk file snapshots and denies post-approval script drift before execution.\n\n## Affected Packages / Versions\n\n- Package: `openclaw` (npm)\n- Affected versions: `\u003c= 2026.3.7`\n- Patched version: `2026.3.8`\n\n## Fix Commit(s)\n\n- `c76d29208bf6a7f058d2cf582519d28069e42240`\n- `cf3a479bd1204f62eef7dd82b4aa328749ae6c91`\n\n## Release Verification\n\n- npm `2026.3.7` remains vulnerable.\n- npm `2026.3.8` contains the completed fix.\n\nThanks @tdjackey for reporting.",
  "id": "GHSA-8g75-q649-6pv6",
  "modified": "2026-04-06T22:37:15Z",
  "published": "2026-03-12T14:21:28Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-8g75-q649-6pv6"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-32921"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/openclaw/commit/c76d29208bf6a7f058d2cf582519d28069e42240"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/openclaw/commit/cf3a479bd1204f62eef7dd82b4aa328749ae6c91"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/openclaw/openclaw"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/openclaw-script-content-modification-via-mutable-operand-binding-in-system-run"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "OpenClaw\u0027s system.run approvals did not bind mutable script operands across approval and execution"
}

GHSA-8GFM-8WFF-RJVJ

Vulnerability from github – Published: 2024-07-04 21:30 – Updated: 2025-11-29 15:30
VLAI
Details

An issue was discovered in HTTP2 in Qt before 5.15.18, 6.x before 6.2.13, 6.3.x through 6.5.x before 6.5.7, and 6.6.x through 6.7.x before 6.7.3. Code to make security-relevant decisions about an established connection may execute too early, because the encrypted() signal has not yet been emitted and processed..

Severity
8.6 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2024-39936"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-367"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-07-04T21:15:10Z",
    "severity": "HIGH"
  },
  "details": "An issue was discovered in HTTP2 in Qt before 5.15.18, 6.x before 6.2.13, 6.3.x through 6.5.x before 6.5.7, and 6.6.x through 6.7.x before 6.7.3. Code to make security-relevant decisions about an established connection may execute too early, because the encrypted() signal has not yet been emitted and processed..",
  "id": "GHSA-8gfm-8wff-rjvj",
  "modified": "2025-11-29T15:30:17Z",
  "published": "2024-07-04T21:30:50Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-39936"
    },
    {
      "type": "WEB",
      "url": "https://codereview.qt-project.org/c/qt/qtbase/+/571601"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/11/msg00031.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-8H37-WG3P-5FR4

Vulnerability from github – Published: 2026-01-07 12:31 – Updated: 2026-01-07 12:31
VLAI
Details

Memory corruption while processing a config call from userspace.

Severity
6.7 (Medium)
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2025-47332"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-367"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-01-07T12:17:02Z",
    "severity": "MODERATE"
  },
  "details": "Memory corruption while processing a config call from userspace.",
  "id": "GHSA-8h37-wg3p-5fr4",
  "modified": "2026-01-07T12:31:23Z",
  "published": "2026-01-07T12:31:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-47332"
    },
    {
      "type": "WEB",
      "url": "https://docs.qualcomm.com/product/publicresources/securitybulletin/january-2026-bulletin.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-8HG8-HC8R-QQJH

Vulnerability from github – Published: 2024-07-15 18:31 – Updated: 2024-07-15 18:31
VLAI
Details

Race condition in the installer for some Zoom Apps and SDKs for Windows before version 6.0.0 may allow an authenticated user to conduct a privilege escalation via local access.

Severity
7.1 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2024-27238"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-367"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-07-15T18:15:03Z",
    "severity": "HIGH"
  },
  "details": "Race condition in the installer for some Zoom Apps and SDKs for Windows before version 6.0.0 may allow an authenticated user to conduct a privilege escalation via local access.",
  "id": "GHSA-8hg8-hc8r-qqjh",
  "modified": "2024-07-15T18:31:15Z",
  "published": "2024-07-15T18:31:15Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-27238"
    },
    {
      "type": "WEB",
      "url": "https://www.zoom.com/en/trust/security-bulletin/zsb-24021"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-8M37-FQXX-CFWJ

Vulnerability from github – Published: 2026-05-28 12:30 – Updated: 2026-06-19 15:33
VLAI
Details

In the Linux kernel, the following vulnerability has been resolved:

btrfs: fix btrfs_ioctl_space_info() slot_count TOCTOU which can lead to info-leak

btrfs_ioctl_space_info() has a TOCTOU race between two passes over the block group RAID type lists. The first pass counts entries to determine the allocation size, then the second pass fills the buffer. The groups_sem rwlock is released between passes, allowing concurrent block group removal to reduce the entry count.

When the second pass fills fewer entries than the first pass counted, copy_to_user() copies the full alloc_size bytes including trailing uninitialized kmalloc bytes to userspace.

Fix by copying only total_spaces entries (the actually-filled count from the second pass) instead of alloc_size bytes, and switch to kzalloc so any future copy size mismatch cannot leak heap data.

Severity
4.7 (Medium)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2026-46159"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-367"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-28T10:16:31Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix btrfs_ioctl_space_info() slot_count TOCTOU which can lead to info-leak\n\nbtrfs_ioctl_space_info() has a TOCTOU race between two passes over the\nblock group RAID type lists. The first pass counts entries to determine\nthe allocation size, then the second pass fills the buffer. The\ngroups_sem rwlock is released between passes, allowing concurrent block\ngroup removal to reduce the entry count.\n\nWhen the second pass fills fewer entries than the first pass counted,\ncopy_to_user() copies the full alloc_size bytes including trailing\nuninitialized kmalloc bytes to userspace.\n\nFix by copying only total_spaces entries (the actually-filled count from\nthe second pass) instead of alloc_size bytes, and switch to kzalloc so\nany future copy size mismatch cannot leak heap data.",
  "id": "GHSA-8m37-fqxx-cfwj",
  "modified": "2026-06-19T15:33:13Z",
  "published": "2026-05-28T12:30:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46159"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4fdc6ee0802121d9cd96b8d085e589f51e5a4ec3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5d12e0ab009ade48c1bff9324fd9bea2c773d088"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/973e57c726c1f8e77259d1c8e519519f1e9aea77"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d09d67d5de577cedae3de9497dff217e0ac8b641"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d69a4a6813fdba7c4cc3695a7e843842b240790d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d8224b1be6627c6c3b204bfb264508d27c65ac44"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f407aad350bdea4db300c47433573b7a41630d33"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f5ee467b56764964027c361641f64953fc0f8f9a"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-8M52-QCFF-9HC8

Vulnerability from github – Published: 2022-05-13 01:21 – Updated: 2022-05-13 01:21
VLAI
Details

An elevation of privilege vulnerability exists when Windows improperly handles calls to the LUAFV driver (luafv.sys), aka 'Windows Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-0730, CVE-2019-0731, CVE-2019-0796, CVE-2019-0805, CVE-2019-0841.

Severity
7.8 (High)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2019-0836"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-367"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-04-09T21:29:00Z",
    "severity": "HIGH"
  },
  "details": "An elevation of privilege vulnerability exists when Windows improperly handles calls to the LUAFV driver (luafv.sys), aka \u0027Windows Elevation of Privilege Vulnerability\u0027. This CVE ID is unique from CVE-2019-0730, CVE-2019-0731, CVE-2019-0796, CVE-2019-0805, CVE-2019-0841.",
  "id": "GHSA-8m52-qcff-9hc8",
  "modified": "2022-05-13T01:21:38Z",
  "published": "2022-05-13T01:21:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-0836"
    },
    {
      "type": "WEB",
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0836"
    },
    {
      "type": "WEB",
      "url": "https://www.exploit-db.com/exploits/46718"
    },
    {
      "type": "WEB",
      "url": "http://packetstormsecurity.com/files/152538/Microsoft-Windows-LUAFV-PostLuafvPostReadWrite-SECTION_OBJECT_POINTERS-Race-Condition.html"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/107719"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-8MVX-P2R9-R375

Vulnerability from github – Published: 2026-03-03 21:19 – Updated: 2026-03-19 18:35
VLAI
Summary
OpenClaw's web tools strict URL guard could lose DNS pinning when env proxy is configured
Details

Summary

openclaw web tools strict URL fetch paths could lose DNS pinning when environment proxy variables are configured (HTTP_PROXY/HTTPS_PROXY/ALL_PROXY, including lowercase variants).

In affected builds, strict URL checks (for example web_fetch and citation redirect resolution) validated one destination during SSRF guard checks, but runtime connection routing could proceed through an env-proxy dispatcher.

Affected Packages / Versions

  • Package: openclaw (npm)
  • Vulnerable version range: <= 2026.3.1
  • Latest published npm version at triage time (2026-03-02): 2026.3.1
  • Patched versions: >= 2026.3.2 (released)

Technical Details

The SSRF guard performed hostname resolution and policy checks, then selected a request dispatcher.

When env proxy settings were present, strict web-tool flows could use EnvHttpProxyAgent instead of the DNS-pinned dispatcher. This created a destination-binding gap between check-time resolution and connect-time routing.

The fix keeps DNS pinning on strict/untrusted web-tool URL paths and limits env-proxy bypass behavior to trusted/operator-controlled endpoints via an explicit dangerous opt-in.

Impact

In deployments with env proxy variables configured, attacker-influenced URLs from web tools could be routed through proxy behavior instead of strict pinned-destination routing, which could allow access to internal/private targets reachable from that proxy environment.

Mitigations

Before upgrading, operators can reduce exposure by clearing proxy env vars for OpenClaw runtime processes or disabling web_fetch / web_search where untrusted URL input is possible.

Fix Commit(s)

  • 345abf0b2e0f43b0f229e96f252ebf56f1e5549e
Severity
6.1 (Medium)
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N
Show details on source website
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 2026.3.1"
      },
      "package": {
        "ecosystem": "npm",
        "name": "openclaw"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2026.3.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-22181"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-367",
      "CWE-918"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-03-03T21:19:47Z",
    "nvd_published_at": "2026-03-18T02:16:22Z",
    "severity": "MODERATE"
  },
  "details": "### Summary\n`openclaw` web tools strict URL fetch paths could lose DNS pinning when environment proxy variables are configured (`HTTP_PROXY`/`HTTPS_PROXY`/`ALL_PROXY`, including lowercase variants).\n\nIn affected builds, strict URL checks (for example `web_fetch` and citation redirect resolution) validated one destination during SSRF guard checks, but runtime connection routing could proceed through an env-proxy dispatcher.\n\n### Affected Packages / Versions\n- Package: `openclaw` (npm)\n- Vulnerable version range: `\u003c= 2026.3.1`\n- Latest published npm version at triage time (2026-03-02): `2026.3.1`\n- Patched versions: `\u003e= 2026.3.2` (released)\n\n### Technical Details\nThe SSRF guard performed hostname resolution and policy checks, then selected a request dispatcher.\n\nWhen env proxy settings were present, strict web-tool flows could use `EnvHttpProxyAgent` instead of the DNS-pinned dispatcher. This created a destination-binding gap between check-time resolution and connect-time routing.\n\nThe fix keeps DNS pinning on strict/untrusted web-tool URL paths and limits env-proxy bypass behavior to trusted/operator-controlled endpoints via an explicit dangerous opt-in.\n\n### Impact\nIn deployments with env proxy variables configured, attacker-influenced URLs from web tools could be routed through proxy behavior instead of strict pinned-destination routing, which could allow access to internal/private targets reachable from that proxy environment.\n\n### Mitigations\nBefore upgrading, operators can reduce exposure by clearing proxy env vars for OpenClaw runtime processes or disabling `web_fetch` / `web_search` where untrusted URL input is possible.\n\n### Fix Commit(s)\n- `345abf0b2e0f43b0f229e96f252ebf56f1e5549e`",
  "id": "GHSA-8mvx-p2r9-r375",
  "modified": "2026-03-19T18:35:37Z",
  "published": "2026-03-03T21:19:47Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-8mvx-p2r9-r375"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-22181"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/openclaw/commit/345abf0b2e0f43b0f229e96f252ebf56f1e5549e"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/openclaw/openclaw"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/openclaw-dns-pinning-bypass-via-environment-proxy-configuration-in-web-fetch"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "OpenClaw\u0027s web tools strict URL guard could lose DNS pinning when env proxy is configured"
}

GHSA-8P32-H9GR-3VRR

Vulnerability from github – Published: 2024-08-14 15:31 – Updated: 2024-08-14 15:31
VLAI
Details

Acrobat Reader versions 20.005.30636, 24.002.20965, 24.002.20964, 24.001.30123 and earlier are affected by a Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability that could lead to privilege escalation. Exploitation of this issue require local low-privilege access to the affected system and attack complexity is high.

Severity
7.0 (High)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2024-39425"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-367"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-08-14T15:15:25Z",
    "severity": "HIGH"
  },
  "details": "Acrobat Reader versions 20.005.30636, 24.002.20965, 24.002.20964, 24.001.30123 and earlier are affected by a Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability that could lead to privilege escalation. Exploitation of this issue require local low-privilege access to the affected system and attack complexity is high.",
  "id": "GHSA-8p32-h9gr-3vrr",
  "modified": "2024-08-14T15:31:18Z",
  "published": "2024-08-14T15:31:18Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-39425"
    },
    {
      "type": "WEB",
      "url": "https://helpx.adobe.com/security/products/acrobat/apsb24-57.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-8P5G-QXW3-R526

Vulnerability from github – Published: 2023-06-13 18:30 – Updated: 2024-04-04 04:47
VLAI
Details

Potential time-of-check to time-of-use (TOCTOU) vulnerabilities have been identified in the BIOS for certain HP PC products, which might allow arbitrary code execution, escalation of privilege, denial of service, and information disclosure.

Severity
7.8 (High)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2022-31638"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-367"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-06-13T17:15:12Z",
    "severity": "HIGH"
  },
  "details": "Potential time-of-check to time-of-use (TOCTOU) vulnerabilities have been identified in the BIOS for certain HP PC products, which might allow arbitrary code execution, escalation of privilege, denial of service, and information disclosure.",
  "id": "GHSA-8p5g-qxw3-r526",
  "modified": "2024-04-04T04:47:18Z",
  "published": "2023-06-13T18:30:39Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-31638"
    },
    {
      "type": "WEB",
      "url": "https://support.hp.com/us-en/document/ish_7149996-7150021-16/hpsbhf03814"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-8P7H-769G-X7MF

Vulnerability from github – Published: 2022-11-30 15:30 – Updated: 2022-12-02 15:30
VLAI
Details

Unauth. Race Condition vulnerability in WP ULike Plugin <= 4.6.4 on WordPress allows attackers to increase/decrease rating scores.

Severity
3.7 (Low)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
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{
  "affected": [],
  "aliases": [
    "CVE-2022-45842"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-367"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-11-30T13:15:00Z",
    "severity": "LOW"
  },
  "details": "Unauth. Race Condition vulnerability in WP ULike Plugin \u003c= 4.6.4 on WordPress allows attackers to increase/decrease rating scores.",
  "id": "GHSA-8p7h-769g-x7mf",
  "modified": "2022-12-02T15:30:26Z",
  "published": "2022-11-30T15:30:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-45842"
    },
    {
      "type": "WEB",
      "url": "https://patchstack.com/database/vulnerability/wp-ulike/wordpress-wp-ulike-plugin-4-6-3-race-condition-vulnerability?_s_id=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}
Mitigation
Implementation

The most basic advice for TOCTOU vulnerabilities is to not perform a check before the use. This does not resolve the underlying issue of the execution of a function on a resource whose state and identity cannot be assured, but it does help to limit the false sense of security given by the check.

Mitigation
Implementation

When the file being altered is owned by the current user and group, set the effective gid and uid to that of the current user and group when executing this statement.

Mitigation
Architecture and Design

Limit the interleaving of operations on files from multiple processes.

Mitigation
Implementation Architecture and Design

If you cannot perform operations atomically and you must share access to the resource between multiple processes or threads, then try to limit the amount of time (CPU cycles) between the check and use of the resource. This will not fix the problem, but it could make it more difficult for an attack to succeed.

Mitigation
Implementation

Recheck the resource after the use call to verify that the action was taken appropriately.

Mitigation
Architecture and Design

Ensure that some environmental locking mechanism can be used to protect resources effectively.

Mitigation
Implementation

Ensure that locking occurs before the check, as opposed to afterwards, such that the resource, as checked, is the same as it is when in use.

CAPEC-27: Leveraging Race Conditions via Symbolic Links

This attack leverages the use of symbolic links (Symlinks) in order to write to sensitive files. An attacker can create a Symlink link to a target file not otherwise accessible to them. When the privileged program tries to create a temporary file with the same name as the Symlink link, it will actually write to the target file pointed to by the attackers' Symlink link. If the attacker can insert malicious content in the temporary file they will be writing to the sensitive file by using the Symlink. The race occurs because the system checks if the temporary file exists, then creates the file. The attacker would typically create the Symlink during the interval between the check and the creation of the temporary file.

CAPEC-29: Leveraging Time-of-Check and Time-of-Use (TOCTOU) Race Conditions

This attack targets a race condition occurring between the time of check (state) for a resource and the time of use of a resource. A typical example is file access. The adversary can leverage a file access race condition by "running the race", meaning that they would modify the resource between the first time the target program accesses the file and the time the target program uses the file. During that period of time, the adversary could replace or modify the file, causing the application to behave unexpectedly.

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