gsd-2020-11945
Vulnerability from gsd
Modified
2023-12-13 01:22
Details
An issue was discovered in Squid before 5.0.2. A remote attacker can replay a sniffed Digest Authentication nonce to gain access to resources that are otherwise forbidden. This occurs because the attacker can overflow the nonce reference counter (a short integer). Remote code execution may occur if the pooled token credentials are freed (instead of replayed as valid credentials).
Aliases
Aliases
CVE-2020-11945


To clipboard 

{
  "GSD": {
    "alias": "CVE-2020-11945",
    "description": "An issue was discovered in Squid before 5.0.2. A remote attacker can replay a sniffed Digest Authentication nonce to gain access to resources that are otherwise forbidden. This occurs because the attacker can overflow the nonce reference counter (a short integer). Remote code execution may occur if the pooled token credentials are freed (instead of replayed as valid credentials).",
    "id": "GSD-2020-11945",
    "references": [
      "https://www.suse.com/security/cve/CVE-2020-11945.html",
      "https://www.debian.org/security/2020/dsa-4682",
      "https://access.redhat.com/errata/RHSA-2020:2041",
      "https://access.redhat.com/errata/RHSA-2020:2040",
      "https://access.redhat.com/errata/RHSA-2020:2039",
      "https://access.redhat.com/errata/RHSA-2020:2038",
      "https://ubuntu.com/security/CVE-2020-11945",
      "https://advisories.mageia.org/CVE-2020-11945.html",
      "https://security.archlinux.org/CVE-2020-11945",
      "https://alas.aws.amazon.com/cve/html/CVE-2020-11945.html",
      "https://linux.oracle.com/cve/CVE-2020-11945.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2020-11945"
      ],
      "details": "An issue was discovered in Squid before 5.0.2. A remote attacker can replay a sniffed Digest Authentication nonce to gain access to resources that are otherwise forbidden. This occurs because the attacker can overflow the nonce reference counter (a short integer). Remote code execution may occur if the pooled token credentials are freed (instead of replayed as valid credentials).",
      "id": "GSD-2020-11945",
      "modified": "2023-12-13T01:22:06.433501Z",
      "schema_version": "1.4.0"
    }
  },
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      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 7.5,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 6.4,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "HIGH",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2021-03-17T12:40Z",
      "publishedDate": "2020-04-23T15:15Z"
    }
  }
}


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