#VU32797 Permissions, Privileges, and Access Controls in Sudo - CVE-2012-2337

Vulnerability identifier: #VU32797

Vulnerability risk: Low

CVSSv4.0: 6.1 [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-2012-2337

CWE-ID: CWE-264

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Sudo
Client/Desktop applications / Software for system administration

Vendor: Sudo

Description

The vulnerability allows a local non-authenticated attacker to execute arbitrary code.

sudo 1.6.x and 1.7.x before 1.7.9p1, and 1.8.x before 1.8.4p5, does not properly support configurations that use a netmask syntax, which allows local users to bypass intended command restrictions in opportunistic circumstances by executing a command on a host that has an IPv4 address.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Sudo: 1.7.0 - 1.8.4p4

---

External links
https://lists.fedoraproject.org/pipermail/package-announce/2012-May/081432.html
https://secunia.com/advisories/49219
https://secunia.com/advisories/49244
https://secunia.com/advisories/49291
https://secunia.com/advisories/49948
https://www.debian.org/security/2012/dsa-2478
https://www.mandriva.com/security/advisories?name=MDVSA-2012:079
https://www.securitytracker.com/id?1027077
https://www.sudo.ws/sudo/alerts/netmask.html
https://bugzilla.redhat.com/show_bug.cgi?id=820677
https://www.suse.com/security/cve/CVE-2012-2337/

---

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.