Permissions, Privileges, and Access Controls in Sudo - CVE-2015-5602
Published: November 17, 2015 / Updated: July 28, 2020
Vulnerability identifier: #VU32397
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2015-5602
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Sudo
Affected software:
Sudo
Sudo
Detailed vulnerability description
The vulnerability allows a local non-authenticated attacker to execute arbitrary code.
sudoedit in Sudo before 1.8.15 allows local users to gain privileges via a symlink attack on a file whose full path is defined using multiple wildcards in /etc/sudoers, as demonstrated by "/home/*/*/file.txt."
How to mitigate CVE-2015-5602
Install update from vendor's website.
Sources
- http://bugzilla.sudo.ws/show_bug.cgi?id=707
- http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171024.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171054.html
- http://www.debian.org/security/2016/dsa-3440
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
- http://www.securitytracker.com/id/1034392
- http://www.sudo.ws/stable.html#1.8.15
- https://security.gentoo.org/glsa/201606-13
- https://www.exploit-db.com/exploits/37710/