GHSA-9PQ7-RCXV-47VQ

Vulnerability from github – Published: 2021-07-14 19:10 – Updated: 2021-07-15 20:24
VLAI?
Summary
Incorrect Regular Expression in RestSharp
Details

RestSharp < 106.11.8-alpha.0.13 uses a regular expression which is vulnerable to Regular Expression Denial of Service (ReDoS) when converting strings into DateTimes. If a server responds with a malicious string, the client using RestSharp will be stuck processing it for an exceedingly long time. Thus the remote server can trigger Denial of Service.

Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 106.11.7"
      },
      "package": {
        "ecosystem": "NuGet",
        "name": "RestSharp"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "106.11.8-alpha.0.13"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-27293"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-185",
      "CWE-697"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-07-13T21:24:43Z",
    "nvd_published_at": "2021-07-12T11:15:00Z",
    "severity": "HIGH"
  },
  "details": "RestSharp \u003c 106.11.8-alpha.0.13 uses a regular expression which is vulnerable to Regular Expression Denial of Service (ReDoS) when converting strings into DateTimes. If a server responds with a malicious string, the client using RestSharp will be stuck processing it for an exceedingly long time. Thus the remote server can trigger Denial of Service.",
  "id": "GHSA-9pq7-rcxv-47vq",
  "modified": "2021-07-15T20:24:43Z",
  "published": "2021-07-14T19:10:01Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-27293"
    },
    {
      "type": "WEB",
      "url": "https://github.com/restsharp/RestSharp/issues/1556"
    },
    {
      "type": "WEB",
      "url": "https://github.com/restsharp/RestSharp/commit/be39346784b68048b230790d15333574341143bc"
    },
    {
      "type": "WEB",
      "url": "https://restsharp.dev"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Incorrect Regular Expression in RestSharp"
}


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