CVE-2022-20742

Published May 3, 2022

Last updated 2 months ago

CVSS high 7.4

VPN

Overview

Description: A vulnerability in an IPsec VPN library of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to read or modify data within an IPsec IKEv2 VPN tunnel. This vulnerability is due to an improper implementation of Galois/Counter Mode (GCM) ciphers. An attacker in a man-in-the-middle position could exploit this vulnerability by intercepting a sufficient number of encrypted messages across an affected IPsec IKEv2 VPN tunnel and then using cryptanalytic techniques to break the encryption. A successful exploit could allow the attacker to decrypt, read, modify, and re-encrypt data that is transmitted across an affected IPsec IKEv2 VPN tunnel.
Source: psirt@cisco.com
NVD status: Modified
Products: secure_firewall_threat_defense, adaptive_security_appliance_software

Risk scores

CVSS 3.1

Type: Primary
Base score: 7.4
Impact score: 5.2
Exploitability score: 2.2
Vector string: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Severity: HIGH

CVSS 2.0

Type: Primary
Base score: 5.8
Impact score: 4.9
Exploitability score: 8.6
Vector string: AV:N/AC:M/Au:N/C:P/I:P/A:N

Weaknesses

psirt@cisco.com: CWE-325
nvd@nist.gov: NVD-CWE-Other

Hype score: Not currently trending

Configurations

[
  {
    "nodes": [
      {
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:a:cisco:secure_firewall_threat_defense:*:*:*:*:*:*:*:*",
            "matchCriteriaId": "A2185AD8-8529-4652-9961-478607D8B9C9",
            "versionEndExcluding": "6.4.0.15",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:a:cisco:secure_firewall_threat_defense:*:*:*:*:*:*:*:*",
            "matchCriteriaId": "F889CFFA-834B-4B38-80BE-4571C12F31C6",
            "versionEndExcluding": "6.6.5.2",
            "versionStartIncluding": "6.5.0",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:a:cisco:secure_firewall_threat_defense:*:*:*:*:*:*:*:*",
            "matchCriteriaId": "476F3D70-C3BC-4E28-9F9D-ED6B61ED66DB",
            "versionEndExcluding": "7.0.2",
            "versionStartIncluding": "7.0.0",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:a:cisco:secure_firewall_threat_defense:7.1.0:*:*:*:*:*:*:*",
            "matchCriteriaId": "3AD3F514-9FBC-403C-8F8F-2507708D685F",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*",
            "matchCriteriaId": "66C2579F-1E8B-4FB1-AA40-B164F4F2BBED",
            "versionEndExcluding": "9.12.4.38",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*",
            "matchCriteriaId": "FFE84A5D-FFD6-4A82-BDFA-367D29625300",
            "versionEndExcluding": "9.14.4",
            "versionStartIncluding": "9.13.0",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*",
            "matchCriteriaId": "7B120E68-DA48-4B87-A549-6BA7009C056D",
            "versionEndExcluding": "9.15.1.21",
            "versionStartIncluding": "9.15.0",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*",
            "matchCriteriaId": "99DD72E2-E389-453E-8A99-1B633C4E2AE3",
            "versionEndExcluding": "9.16.2.14",
            "versionStartIncluding": "9.16.0",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*",
            "matchCriteriaId": "573E61F7-8311-4095-BD75-8F3D3E2499E5",
            "versionEndExcluding": "9.17.1.7",
            "versionStartIncluding": "9.17.0",
            "vulnerable": true
          }
        ],
        "negate": false,
        "operator": "OR"
      }
    ]
  }
]

References

Sources include official advisories and independent security research.

Overview

Risk scores

CVSS 3.1

CVSS 2.0

Weaknesses

Social media

Configurations

Related CVEs

References