Vulnerability Name:

CVE-2021-42096 (CCN-211832)

Assigned:2021-10-18
Published:2021-10-18
Updated:2021-11-05
Summary:GNU Mailman before 2.1.35 may allow remote Privilege Escalation. A certain csrf_token value is derived from the admin password, and may be useful in conducting a brute-force attack against that password.
CVSS v3 Severity:4.3 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N)
3.8 Low (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): None
Availibility (A): None
8.0 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H)
7.0 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
4.3 Medium (REDHAT CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N)
3.8 Low (REDHAT Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): None
Availibility (A): None
CVSS v2 Severity:4.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:S/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
9.0 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-307
CWE-200
Vulnerability Consequences:Gain Privileges
References:Source: MITRE
Type: CNA
CVE-2021-42096

Source: MLIST
Type: Mailing List, Patch, Third Party Advisory
[oss-security] 20211021 Mailman 2.1.35 security release

Source: CONFIRM
Type: Patch, Third Party Advisory
https://bugs.launchpad.net/mailman/+bug/1947639

Source: CCN
Type: LaunchPad Web site
Potential CSRF attack via the user options page.

Source: XF
Type: UNKNOWN
gnumailman-cve202142096-csrf(211832)

Source: CONFIRM
Type: Patch, Third Party Advisory
https://mail.python.org/archives/list/mailman-announce@python.org/thread/IKCO6JU755AP5G5TKMBJL6IEZQTTNPDQ/

Source: CCN
Type: oss-sec Mailing List, Thu, 21 Oct 2021 12:04:47 -0700
Mailman 2.1.35 security release

Source: DEBIAN
Type: Third Party Advisory
DSA-4991

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2021-42096

Vulnerable Configuration:Configuration 1:
  • cpe:/a:gnu:mailman:*:*:*:*:*:*:*:* (Version < 2.1.35)

    • Configuration 2:
  • cpe:/o:debian:debian_linux:10.0:*:*:*:*:*:*:*

    • Configuration RedHat 1:
  • cpe:/a:redhat:enterprise_linux:8:*:*:*:*:*:*:*

    • Configuration RedHat 2:
  • cpe:/a:redhat:enterprise_linux:8::appstream:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:gnu:mailman:2.1.34:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:125725
    P
    		Security update for mailman (Important)
    2022-05-31
    oval:org.opensuse.security:def:126890
    P
    		Security update for mailman (Important)
    2022-05-31
    oval:org.opensuse.security:def:127287
    P
    		Security update for mailman (Important)
    2022-05-31
    oval:org.opensuse.security:def:6060
    P
    		Security update for mailman (Important)
    2022-05-31
    oval:com.redhat.rhsa:def:20214826
    P
    		RHSA-2021:4826: mailman:2.1 security update (Important)
    2021-11-23
    oval:org.opensuse.security:def:96432
    P
    		Security update for mailman (Important)
    2021-11-05
    oval:org.opensuse.security:def:103122
    P
    		Security update for mailman (Important)
    2021-11-05
    oval:org.opensuse.security:def:109779
    P
    		Security update for mailman (Important)
    2021-11-05
    oval:org.opensuse.security:def:11144
    P
    		Security update for mailman (Important)
    2021-11-05
    oval:org.opensuse.security:def:111116
    P
    		Security update for mailman (Important)
    2021-11-02
    BACK
    gnu mailman *
    debian debian linux 10.0
    gnu mailman 2.1.34