Vulnerability-Lookup

UBUNTU-CVE-2023-1521 (CVE-2023-1521)

Vulnerability from osv_ubuntu – Published: 2024-11-26 12:15 – Updated: 2026-05-20 15:01 – Source website

Details

On Linux the sccache client can execute arbitrary code with the privileges of a local sccache server, by preloading the code in a shared library passed to LD_PRELOAD. If the server is run as root (which is the default when installing the snap package https://snapcraft.io/sccache ), this means a user running the sccache client can get root privileges.

Severity

7.8 (High)


                    
                      CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2023-1521	REPORT
	https://www.cve.org/CVERecord?id=CVE-2023-1521	REPORT
	https://github.com/advisories/GHSA-x7fr-pg8f-93f5	REPORT
	https://securitylab.github.com/advisories/GHSL-20…	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "sccache",
            "binary_version": "0.7.7-2ubuntu0.1+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:24.04:LTS",
        "name": "sccache",
        "purl": "pkg:deb/ubuntu/sccache@0.7.7-2ubuntu0.1+esm1?arch=source\u0026distro=esm-apps/noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.5.4-2",
        "0.7.4-3",
        "0.7.5-1",
        "0.7.5-2",
        "0.7.6-1",
        "0.7.7-1",
        "0.7.7-2",
        "0.7.7-2build1",
        "0.7.7-2ubuntu0.1~esm1",
        "0.7.7-2ubuntu0.1",
        "0.7.7-2ubuntu0.1+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "sccache",
            "binary_version": "0.10.0-7ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "sccache",
        "purl": "pkg:deb/ubuntu/sccache@0.10.0-7ubuntu0.1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.9.1-3",
        "0.10.0-4",
        "0.10.0-7",
        "0.10.0-7ubuntu0.1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "sccache",
            "binary_version": "0.13.0+ds-3build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "sccache",
        "purl": "pkg:deb/ubuntu/sccache@0.13.0+ds-3build1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.10.0-7",
        "0.11.0-1",
        "0.12.0-2",
        "0.12.0-3",
        "0.13.0+ds-1",
        "0.13.0+ds-3",
        "0.13.0+ds-3build1"
      ]
    }
  ],
  "aliases": [],
  "details": "On Linux the sccache client can execute arbitrary code with the privileges of a local sccache server, by preloading the code in a shared library passed to LD_PRELOAD. If the server is run as root (which is the default when installing the snap package https://snapcraft.io/sccache ), this means a user running the sccache client can get root privileges.",
  "id": "UBUNTU-CVE-2023-1521",
  "modified": "2026-05-20T15:01:53Z",
  "published": "2024-11-26T12:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-1521"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2023-1521"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/advisories/GHSA-x7fr-pg8f-93f5"
    },
    {
      "type": "REPORT",
      "url": "https://securitylab.github.com/advisories/GHSL-2023-046_ScCache"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2023-1521"
  ]
}

CVE-2023-1521 (GCVE-0-2023-1521)

Vulnerability from cvelistv5 – Published: 2024-11-26 11:15 – Updated: 2024-11-26 20:45

Title

Local Privilege Escalation in sccache

Summary

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-11-26 20:35 UTC

CWE

CWE-426 - Untrusted Search Path

Assigner

mozilla mitre root

References

2 references

URL	Tags
https://securitylab.github.com/advisories/GHSL-20…	third-party-advisory
https://github.com/advisories/GHSA-x7fr-pg8f-93f5	vendor-advisory

Impacted products

2 products

Vendor	Product	Version
Mozilla	sccache	Affected: 0 , < 0.4.0 (semver)
mozilla	sccache	Affected: 0 , < 0.4.0 (semver) cpe:2.3:a:mozilla:sccache::::::::

Credits

Paolo Tranquilli (@redsun82)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:a:mozilla:sccache:*:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "sccache",
            "vendor": "mozilla",
            "versions": [
              {
                "lessThan": "0.4.0",
                "status": "affected",
                "version": "0",
                "versionType": "semver"
              }
            ]
          }
        ],
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 7.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2023-1521",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-11-26T20:35:46.133326Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-11-26T20:45:48.176Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "product": "sccache",
          "vendor": "Mozilla",
          "versions": [
            {
              "lessThan": "0.4.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "Paolo Tranquilli (@redsun82)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eOn Linux the \u003ccode\u003esccache\u003c/code\u003e client can execute arbitrary code with the privileges of a local \u003ccode\u003esccache\u003c/code\u003e server, by preloading the code in a shared library passed to \u003ccode\u003eLD_PRELOAD\u003c/code\u003e.\u003c/p\u003e\n\u003cp\u003eIf the server is run as root (which is the default when installing the \u003ca target=\"_blank\" rel=\"nofollow\" href=\"https://snapcraft.io/sccache\"\u003esnap package\u003c/a\u003e), this means a user running the \u003ccode\u003esccache\u003c/code\u003e client can get root privileges.\u003c/p\u003e"
            }
          ],
          "value": "On Linux the sccache client can execute arbitrary code with the privileges of a local sccache server, by preloading the code in a shared library passed to LD_PRELOAD.\n\n\nIf the server is run as root (which is the default when installing the  snap package https://snapcraft.io/sccache ), this means a user running the sccache client can get root privileges."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-233",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-233 Privilege Escalation"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-426",
              "description": "CWE-426 Untrusted Search Path",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-11-26T11:15:59.434Z",
        "orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
        "shortName": "mozilla"
      },
      "references": [
        {
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://securitylab.github.com/advisories/GHSL-2023-046_ScCache"
        },
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://github.com/advisories/GHSA-x7fr-pg8f-93f5"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Local Privilege Escalation in sccache",
      "x_generator": {
        "engine": "Vulnogram 0.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
    "assignerShortName": "mozilla",
    "cveId": "CVE-2023-1521",
    "datePublished": "2024-11-26T11:15:59.434Z",
    "dateReserved": "2023-03-20T15:56:33.714Z",
    "dateUpdated": "2024-11-26T20:45:48.176Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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UBUNTU-CVE-2023-1521 (CVE-2023-1521)

CVE-2023-1521 (GCVE-0-2023-1521)

Tags

Sightings

Nomenclature

Related by attack behaviour