OS command injection in Newsbeuter

1) OS Command Injection

EUVDB-ID: #VU33984

Risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2017-12904

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.

The vulnerability exists due to improper input validation when processing title and URL in an RSS items. A remote attacker can pass specially crafted data via RSS feed to the application and execute arbitrary OS commands on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

newsbeuter: 0.7 - 2.9

CPE2.3

• cpe:2.3:a:akrennmair:newsbeuter:0.7:*:*:*:*:*:*:*
• cpe:2.3:a:akrennmair:newsbeuter:0.8:*:*:*:*:*:*:*
• cpe:2.3:a:akrennmair:newsbeuter:0.8.1:*:*:*:*:*:*:*

External links

https://www.debian.org/security/2017/dsa-3947
https://github.com/akrennmair/newsbeuter/commit/96e9506ae9e252c548665152d1b8968297128307
https://github.com/akrennmair/newsbeuter/issues/591
https://groups.google.com/forum/#!topic/newsbeuter/iFqSE7Vz-DE
https://security-tracker.debian.org/tracker/CVE-2017-12904

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.