Vulnerability Name:

CVE-2021-45079 (CCN-219504)

Assigned:2021-12-16
Published:2022-01-24
Updated:2022-07-12
Summary:In strongSwan before 5.9.5, a malicious responder can send an EAP-Success message too early without actually authenticating the client and (in the case of EAP methods with mutual authentication and EAP-only authentication for IKEv2) even without server authentication.
CVSS v3 Severity:9.1 Critical (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H)
7.9 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): High
9.1 Critical (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H)
7.9 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:5.8 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): Partial
9.4 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:C/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-476
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2021-45079

Source: XF
Type: UNKNOWN
strongswan-cve202145079-dos(219504)

Source: CCN
Type: strongSwan Web site
strongSwan Vulnerability (CVE-2021-45079)

Source: MISC
Type: Mitigation, Vendor Advisory
https://www.strongswan.org/blog/2022/01/24/strongswan-vulnerability-(cve-2021-45079).html

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2021-45079

Vulnerable Configuration:Configuration 1:
  • cpe:/a:strongswan:strongswan:*:*:*:*:*:*:*:* (Version >= 4.1.2 and < 5.9.5)

    • Configuration 2:
  • cpe:/o:debian:debian_linux:9.0:*:*:*:*:*:*:*
  • OR cpe:/o:debian:debian_linux:10.0:*:*:*:*:*:*:*
  • OR cpe:/o:debian:debian_linux:11.0:*:*:*:*:*:*:*

    • Configuration 3:
  • cpe:/o:fedoraproject:fedora:34:*:*:*:*:*:*:*
  • OR cpe:/a:fedoraproject:extra_packages_for_enterprise_linux:8.0:*:*:*:*:*:*:*
  • OR cpe:/o:fedoraproject:fedora:35:*:*:*:*:*:*:*
  • OR cpe:/a:fedoraproject:extra_packages_for_enterprise_linux:9.0:*:*:*:*:*:*:*
  • OR cpe:/a:fedoraproject:extra_packages_for_enterprise_linux:7.0:*:*:*:*:*:*:*

    • Configuration 4:
  • cpe:/o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
  • OR cpe:/o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
  • OR cpe:/o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
  • OR cpe:/o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
  • OR cpe:/o:canonical:ubuntu_linux:21.10:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:strongswan:strongswan:4.2.7:*:*:*:*:*:*:*
  • OR cpe:/a:strongswan:strongswan:4.2.6:*:*:*:*:*:*:*
  • OR cpe:/a:strongswan:strongswan:4.2.5:*:*:*:*:*:*:*
  • OR cpe:/a:strongswan:strongswan:4.2.4:*:*:*:*:*:*:*
  • OR cpe:/a:strongswan:strongswan:4.2.3:*:*:*:*:*:*:*
  • OR cpe:/a:strongswan:strongswan:4.2.2:*:*:*:*:*:*:*
  • OR cpe:/a:strongswan:strongswan:4.2.1:*:*:*:*:*:*:*
  • OR cpe:/a:strongswan:strongswan:4.2.0:*:*:*:*:*:*:*
  • OR cpe:/a:strongswan:strongswan:4.1.9:*:*:*:*:*:*:*
  • OR cpe:/a:strongswan:strongswan:4.1.8:*:*:*:*:*:*:*
  • OR cpe:/a:strongswan:strongswan:4.1.7:*:*:*:*:*:*:*
  • OR cpe:/a:strongswan:strongswan:4.1.6:*:*:*:*:*:*:*
  • OR cpe:/a:strongswan:strongswan:4.1.5:*:*:*:*:*:*:*
  • OR cpe:/a:strongswan:strongswan:4.1.4:*:*:*:*:*:*:*
  • OR cpe:/a:strongswan:strongswan:4.1.3:*:*:*:*:*:*:*
  • OR cpe:/a:strongswan:strongswan:4.1.2:*:*:*:*:*:*:*
  • OR cpe:/a:strongswan:strongswan:5.0.3:*:*:*:*:*:*:*
  • OR cpe:/a:strongswan:strongswan:5.0.0:*:*:*:*:*:*:*
  • OR cpe:/a:strongswan:strongswan:5.1.0:*:*:*:*:*:*:*
  • OR cpe:/a:strongswan:strongswan:5.0.2:*:*:*:*:*:*:*
  • OR cpe:/a:strongswan:strongswan:4.6.4:*:*:*:*:*:*:*
  • OR cpe:/a:strongswan:strongswan:5.0.1:*:*:*:*:*:*:*
  • OR cpe:/a:strongswan:strongswan:5.0.4:*:*:*:*:*:*:*
  • OR cpe:/a:strongswan:strongswan:5.1.1:*:*:*:*:*:*:*
  • OR cpe:/a:strongswan:strongswan:5.1.2:*:*:*:*:*:*:*
  • OR cpe:/a:strongswan:strongswan:5.1.3:*:*:*:*:*:*:*
  • OR cpe:/a:strongswan:strongswan:5.2.0:*:*:*:*:*:*:*
  • OR cpe:/a:strongswan:strongswan:5.3.0:*:*:*:*:*:*:*
  • OR cpe:/a:strongswan:strongswan:5.3.3:*:*:*:*:*:*:*
  • OR cpe:/a:strongswan:strongswan:5.5.3:*:*:*:*:*:*:*
  • OR cpe:/a:strongswan:strongswan:5.6.1:*:*:*:*:*:*:*
  • OR cpe:/a:strongswan:strongswan:5.6.0:*:*:*:*:*:*:*
  • OR cpe:/a:strongswan:strongswan:5.7.0:*:*:*:*:*:*:*
  • OR cpe:/a:strongswan:strongswan:5.9.4:-:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:7810
    P
    		strongswan-5.9.7-150500.3.4 on GA media (Moderate)
    2023-06-12
    oval:org.opensuse.security:def:3593
    P
    		libfreetype6-2.6.3-7.15.1 on GA media (Moderate)
    2022-06-28
    oval:org.opensuse.security:def:3204
    P
    		liblouis-data-2.6.4-6.6.1 on GA media (Moderate)
    2022-06-28
    oval:org.opensuse.security:def:94834
    P
    		strongswan-5.8.2-150400.17.24 on GA media (Moderate)
    2022-06-22
    oval:org.opensuse.security:def:95223
    P
    		strongswan-nm-5.8.2-150400.17.24 on GA media (Moderate)
    2022-06-22
    oval:org.opensuse.security:def:119307
    P
    		Security update for strongswan (Important)
    2022-02-18
    oval:org.opensuse.security:def:101634
    P
    		Security update for strongswan (Important)
    2022-02-18
    oval:org.opensuse.security:def:118812
    P
    		Security update for strongswan (Important)
    2022-02-18
    oval:org.opensuse.security:def:1531
    P
    		Security update for strongswan (Important)
    2022-02-18
    oval:org.opensuse.security:def:119490
    P
    		Security update for strongswan (Important)
    2022-02-18
    oval:org.opensuse.security:def:102095
    P
    		Security update for strongswan (Important)
    2022-02-18
    oval:org.opensuse.security:def:119002
    P
    		Security update for strongswan (Important)
    2022-02-18
    oval:org.opensuse.security:def:1813
    P
    		Security update for strongswan (Important)
    2022-02-18
    oval:org.opensuse.security:def:119675
    P
    		Security update for strongswan (Important)
    2022-02-18
    oval:org.opensuse.security:def:102357
    P
    		Security update for strongswan (Important)
    2022-02-18
    oval:org.opensuse.security:def:119109
    P
    		Security update for strongswan (Important)
    2022-02-18
    oval:org.opensuse.security:def:942
    P
    		Security update for strongswan (Important)
    2022-02-18
    oval:org.opensuse.security:def:126894
    P
    		Security update for strongswan (Important)
    2022-01-26
    oval:org.opensuse.security:def:127291
    P
    		Security update for strongswan (Important)
    2022-01-26
    oval:org.opensuse.security:def:125729
    P
    		Security update for strongswan (Important)
    2022-01-26
    oval:org.opensuse.security:def:6066
    P
    		Security update for strongswan (Important)
    2022-01-26
    BACK
    strongswan strongswan *
    debian debian linux 9.0
    debian debian linux 10.0
    debian debian linux 11.0
    fedoraproject fedora 34
    fedoraproject extra packages for enterprise linux 8.0
    fedoraproject fedora 35
    fedoraproject extra packages for enterprise linux 9.0
    fedoraproject extra packages for enterprise linux 7.0
    canonical ubuntu linux 18.04
    canonical ubuntu linux 14.04
    canonical ubuntu linux 20.04
    canonical ubuntu linux 16.04
    canonical ubuntu linux 21.10
    strongswan strongswan 4.2.7
    strongswan strongswan 4.2.6
    strongswan strongswan 4.2.5
    strongswan strongswan 4.2.4
    strongswan strongswan 4.2.3
    strongswan strongswan 4.2.2
    strongswan strongswan 4.2.1
    strongswan strongswan 4.2.0
    strongswan strongswan 4.1.9
    strongswan strongswan 4.1.8
    strongswan strongswan 4.1.7
    strongswan strongswan 4.1.6
    strongswan strongswan 4.1.5
    strongswan strongswan 4.1.4
    strongswan strongswan 4.1.3
    strongswan strongswan 4.1.2
    strongswan strongswan 5.0.3
    strongswan strongswan 5.0.0
    strongswan strongswan 5.1.0
    strongswan strongswan 5.0.2
    strongswan strongswan 4.6.4
    strongswan strongswan 5.0.1
    strongswan strongswan 5.0.4
    strongswan strongswan 5.1.1
    strongswan strongswan 5.1.2
    strongswan strongswan 5.1.3
    strongswan strongswan 5.2.0
    strongswan strongswan 5.3.0
    strongswan strongswan 5.3.3
    strongswan strongswan 5.5.3
    strongswan strongswan 5.6.1
    strongswan strongswan 5.6.0
    strongswan strongswan 5.7.0
    strongswan strongswan 5.9.4 -