FKIE_CVE-2026-57193

Vulnerability from fkie_nvd - Published: 2026-10-26 20:17 - Updated: 2026-10-31 02:17
Severity
6.9 (Medium) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Summary
Asterisk is an open source private branch exchange and telephony toolkit. Prior to Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3, the LDAP realtime driver `res_config_ldap` may permit `LDAP filter injection` through a `SIP username`, allowing an unauthenticated attacker to make arbitrary LDAP queries using carefully crafted SIP packets and disclose information. The `res_config_ldap` module must be loaded and configured to access an LDAP server, which is not the default. This issue is fixed in Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3.
References
security-advisories@github.comhttps://github.com/asterisk/asterisk/commit/04aa482212e43b292817444eb4de35499f4b1568
security-advisories@github.comhttps://github.com/asterisk/asterisk/commit/14968f2f440ea0dd983caa4f477237a5224904dd
security-advisories@github.comhttps://github.com/asterisk/asterisk/commit/23c01b6d359c5d85da725beea89e394a6c031c5d
security-advisories@github.comhttps://github.com/asterisk/asterisk/commit/7e1ae09594a101950398cc6aff2dd2e5ab314884
security-advisories@github.comhttps://github.com/asterisk/asterisk/commit/8170a6bfa75994e7617a8b9d7fe7a7140b70cbe2
security-advisories@github.comhttps://github.com/asterisk/asterisk/commit/dd0c768d9e9678e4cb1ed95689a254a61452239b
security-advisories@github.comhttps://github.com/asterisk/asterisk/commit/ef280572a034cac3994075298facb1999778ee0d
security-advisories@github.comhttps://github.com/asterisk/asterisk/releases/tag/20.20.1
security-advisories@github.comhttps://github.com/asterisk/asterisk/releases/tag/21.12.3
security-advisories@github.comhttps://github.com/asterisk/asterisk/releases/tag/22.10.1
security-advisories@github.comhttps://github.com/asterisk/asterisk/releases/tag/23.4.1
security-advisories@github.comhttps://github.com/asterisk/asterisk/releases/tag/certified-20.7-cert11
security-advisories@github.comhttps://github.com/asterisk/asterisk/releases/tag/certified-22.8-cert3
security-advisories@github.comhttps://github.com/asterisk/asterisk/security/advisories/GHSA-r6c2-hwc2-j4mp
security-advisories@github.comhttps://github.com/asterisk/asterisk/tree/24.0.0-pre1
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "asterisk",
          "vendor": "asterisk",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 20.20.1"
            },
            {
              "status": "affected",
              "version": "\u003e= 21.0.0-pre1, \u003c 21.12.3"
            },
            {
              "status": "affected",
              "version": "\u003e= 22.0.0-pre1, \u003c 22.10.1"
            },
            {
              "status": "affected",
              "version": "\u003e= 23.0.0-pre1, \u003c 23.4.1"
            }
          ]
        },
        {
          "product": "certified-asterisk",
          "vendor": "asterisk",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 20.7-cert11"
            },
            {
              "status": "affected",
              "version": "\u003e= 22.8-cert1-pre1, \u003c 22.8-cert3"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Asterisk is an open source private branch exchange and telephony toolkit. Prior to Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3, the LDAP realtime driver `res_config_ldap` may permit `LDAP filter injection` through a `SIP username`, allowing an unauthenticated attacker to make arbitrary LDAP queries using carefully crafted SIP packets and disclose information. The `res_config_ldap` module must be loaded and configured to access an LDAP server, which is not the default. This issue is fixed in Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3."
    }
  ],
  "id": "CVE-2026-57193",
  "lastModified": "2026-10-31T02:17:34.120",
  "metrics": {
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 6.9,
          "baseSeverity": "MEDIUM",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "NONE",
          "vulnConfidentialityImpact": "LOW",
          "vulnIntegrityImpact": "NONE",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-57193",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-10-31T01:46:45.323083Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-10-26T20:17:56.877",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/asterisk/asterisk/commit/04aa482212e43b292817444eb4de35499f4b1568"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/asterisk/asterisk/commit/14968f2f440ea0dd983caa4f477237a5224904dd"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/asterisk/asterisk/commit/23c01b6d359c5d85da725beea89e394a6c031c5d"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/asterisk/asterisk/commit/7e1ae09594a101950398cc6aff2dd2e5ab314884"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/asterisk/asterisk/commit/8170a6bfa75994e7617a8b9d7fe7a7140b70cbe2"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/asterisk/asterisk/commit/dd0c768d9e9678e4cb1ed95689a254a61452239b"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/asterisk/asterisk/commit/ef280572a034cac3994075298facb1999778ee0d"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/asterisk/asterisk/releases/tag/20.20.1"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/asterisk/asterisk/releases/tag/21.12.3"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/asterisk/asterisk/releases/tag/22.10.1"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/asterisk/asterisk/releases/tag/23.4.1"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/asterisk/asterisk/releases/tag/certified-20.7-cert11"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/asterisk/asterisk/releases/tag/certified-22.8-cert3"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/asterisk/asterisk/security/advisories/GHSA-r6c2-hwc2-j4mp"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/asterisk/asterisk/tree/24.0.0-pre1"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Undergoing Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-943"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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