Vulnerability Name:

CVE-2012-3440 (CCN-77491)

Assigned:2012-08-07
Published:2012-08-07
Updated:2023-02-13
Summary:A certain Red Hat script for sudo 1.7.2 on Red Hat Enterprise Linux (RHEL) 5 allows local users to overwrite arbitrary files via a symlink attack on the /var/tmp/nsswitch.conf.bak temporary file.
CVSS v3 Severity:5.1 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): Low
Availibility (A): Low
CVSS v2 Severity:5.6 Medium (CVSS v2 Vector: AV:L/AC:H/Au:N/C:N/I:C/A:C)
4.2 Medium (Temporal CVSS v2 Vector: AV:L/AC:H/Au:N/C:N/I:C/A:C/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): High
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Complete
Availibility (A): Complete
3.3 Low (CCN CVSS v2 Vector: AV:L/AC:M/Au:N/C:N/I:P/A:P)
2.5 Low (CCN Temporal CVSS v2 Vector: AV:L/AC:M/Au:N/C:N/I:P/A:P/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Medium
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): Partial
5.6 Medium (REDHAT CVSS v2 Vector: AV:L/AC:H/Au:N/C:N/I:C/A:C)
4.2 Medium (REDHAT Temporal CVSS v2 Vector: AV:L/AC:H/Au:N/C:N/I:C/A:C/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): High
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-367
Vulnerability Consequences:File Manipulation
References:Source: MITRE
Type: CNA
CVE-2012-3440

Source: CCN
Type: RHSA-2012-1149
Moderate: sudo security and bug fix update

Source: CCN
Type: SA53663
VMware ESX Server sudo Two Vulnerabilities

Source: secalert@redhat.com
Type: UNKNOWN
secalert@redhat.com

Source: CCN
Type: OSVDB ID: 84492
sudo post-uninstall Sudo Package Upgrade / Removal Handling Symlink Arbitrary File Overwrite

Source: CCN
Type: BID-54868
Todd Miller Sudo Insecure Temporary File Creation Vulnerability

Source: secalert@redhat.com
Type: UNKNOWN
secalert@redhat.com

Source: CCN
Type: Sudo Web site
Sudo Main Page

Source: CCN
Type: VMSA-2013-0007
VMware ESX third party update for Service Console package sudo

Source: CCN
Type: Red Hat Bugzilla Bug 844442
CVE-2012-3440 sudo: insecure temporary file use in RPM %postun script

Source: secalert@redhat.com
Type: Exploit
secalert@redhat.com

Source: XF
Type: UNKNOWN
sudo-postun-symlink(77491)

Vulnerable Configuration:Configuration RedHat 1:
  • cpe:/o:redhat:enterprise_linux:5:*:*:*:*:*:*:*
    • Configuration RedHat 2:
  • cpe:/o:redhat:enterprise_linux:5::client:*:*:*:*:*
    • Configuration RedHat 3:
  • cpe:/o:redhat:enterprise_linux:5::server:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:sudo_project:sudo:1.8.21:p2:*:*:*:*:*:*
  • OR cpe:/a:todd_miller:sudo:1.8.1:*:*:*:*:*:*:*
  • OR cpe:/a:todd_miller:sudo:1.8.2:*:*:*:*:*:*:*
  • OR cpe:/a:todd_miller:sudo:1.8.3:*:*:*:*:*:*:*
  • OR cpe:/a:todd_miller:sudo:1.8.3p1:*:*:*:*:*:*:*
  • AND
  • cpe:/o:redhat:enterprise_linux:5:*:*:*:*:*:*:*
  • OR cpe:/o:redhat:enterprise_linux:5:*:client:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.mitre.oval:def:23250
    P
    		ELSA-2012:1149: sudo security and bug fix update (Moderate)
    2014-05-26
    oval:org.mitre.oval:def:21267
    P
    		RHSA-2012:1149: sudo security and bug fix update (Moderate)
    2014-02-24
    oval:org.mitre.oval:def:20533
    V
    		VMware ESX third party update for Service Console package sudo
    2014-01-20
    oval:com.ubuntu.precise:def:20123440000
    V
    		CVE-2012-3440 on Ubuntu 12.04 LTS (precise) - medium.
    2012-08-08
    oval:com.redhat.rhsa:def:20121149
    P
    		RHSA-2012:1149: sudo security and bug fix update (Moderate)
    2012-08-07
    BACK
    sudo_project sudo 1.8.21 p2
    todd_miller sudo 1.8.1
    todd_miller sudo 1.8.2
    todd_miller sudo 1.8.3
    todd_miller sudo 1.8.3p1
    redhat enterprise linux 5
    redhat enterprise linux 5