Permissions, Privileges, and Access Controls in Sudo

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU32797

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 - Permissions, Privileges, and Access Controls

Exploit availability: No

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

CPE2.3

• cpe:2.3:a:sudo:sudo:1.7.0:*:*:*:*:*:*:*
• cpe:2.3:a:sudo:sudo:1.7.1:*:*:*:*:*:*:*
• cpe:2.3:a:sudo:sudo:1.7.2:*:*:*:*:*:*:*

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.