Link following in SUSE Linux

1) Link following

EUVDB-ID: #VU33704

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2009-1297

CWE-ID: CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Exploit availability: No

Description

The vulnerability allows a local non-authenticated attacker to read and manipulate data.

iscsi_discovery in open-iscsi in SUSE openSUSE 10.3 through 11.1 and SUSE Linux Enterprise (SLE) 10 SP2 and 11, and other operating systems, allows local users to overwrite arbitrary files via a symlink attack on an unspecified temporary file that has a predictable name.

Mitigation

Install update from vendor's website.

Vulnerable software versions

SUSE Linux: 10 - 11

Opensuse: 10 - 11.1

CPE2.3

• cpe:2.3:o:suse:suse_linux:10:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux:11:*:*:*:*:*:*:*
• cpe:2.3:o:suse:opensuse:10:*:*:*:*:*:*:*
• cpe:2.3:o:suse:opensuse:10.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:opensuse:11:*:*:*:*:*:*:*

External links

https://lists.opensuse.org/opensuse-security-announce/2009-10/msg00001.html
https://www.mandriva.com/security/advisories?name=MDVSA-2013:109
https://wiki.mageia.org/en/Support/Advisories/MGASA-2012-0241

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.