#VU20302 Path traversal in KDE Frameworks - CVE-2016-6232

Vulnerability identifier: #VU20302

Vulnerability risk: Medium

CVSSv4.0: 1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2016-6232

CWE-ID: CWE-22

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
KDE Frameworks
Client/Desktop applications / Other client software

Vendor: KDE.org

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 KArchive before 5.24, as used in KDE Frameworks. A remote attacker can trick the victim to open a specially crafted archive and data write to arbitrary files via a ./ (dot dot slash) in a filename, related to KNewsstuff downloads.

Mitigation
Install update from vendor's website.

Vulnerable software versions

KDE Frameworks: 5.2.0 - 5.23.0

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External links
https://lists.opensuse.org/opensuse-security-announce/2016-07/msg00023.html
https://lists.opensuse.org/opensuse-security-announce/2016-09/msg00000.html
https://www.debian.org/security/2016/dsa-3643
https://www.openwall.com/lists/oss-security/2016/07/16/2
https://www.openwall.com/lists/oss-security/2016/07/16/3
https://www.ubuntu.com/usn/USN-3042-1
https://quickgit.kde.org/?p=karchive.git&a=commit&h=0cb243f64eef45565741b27364cece7d5c349c37
https://www.kde.org/info/security/advisory-20160724-1.txt

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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