Path traversal in gcab

1) Path traversal

EUVDB-ID: #VU40949

Risk: Medium

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2015-0552

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences in the gcab_folder_extract function in libgcab/gcab-folder.c in gcab 0.4. A remote authenticated attacker can send a specially crafted HTTP request and remote attackers to write to arbitrary files via crafted path in a CAB file, as demonstrated by " mpmoo.

Mitigation

Install update from vendor's website.

Vulnerable software versions

gcab: 0.4

Opensuse: 0.4 - 13.2

CPE2.3

• cpe:2.3:a:gnome:gcab:0.4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:opensuse:0.4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:opensuse:13.1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:opensuse:13.2:*:*:*:*:*:*:*

External links

http://lists.opensuse.org/opensuse-updates/2015-01/msg00018.html
http://secunia.com/advisories/62310
http://www.openwall.com/lists/oss-security/2015/01/05/7
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=774580
http://bugzilla.gnome.org/show_bug.cgi?id=742331

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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