Input validation error in git.joeyh.name myrepos

1) Input validation error

EUVDB-ID: #VU33232

Risk: Medium

CVSSv4.0: 4.8 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2018-7032

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

webcheckout in myrepos through 1.20171231 does not sanitize URLs that are passed to git clone, allowing a malicious website operator or a MitM attacker to take advantage of it for arbitrary code execution, as demonstrated by an "ext::sh -c" attack or an option injection attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

myrepos: 1.20130710 - 1.20180726

CPE2.3

• cpe:2.3:a:git.joeyh.name:myrepos:1.20130710:*:*:*:*:*:*:*
• cpe:2.3:a:git.joeyh.name:myrepos:1.20140227:*:*:*:*:*:*:*
• cpe:2.3:a:git.joeyh.name:myrepos:1.20141024:*:*:*:*:*:*:*

External links

https://bugs.debian.org/840014

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.