Remote code execution in Kleopatra

1) Insecure DLL loading

EUVDB-ID: #VU46133

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-2020-24972

CWE-ID: CWE-427 - Uncontrolled Search Path Element

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to topenpgp4fpr: URLs are supported without safe handling of command-line options. A remote attacker can trick a victim to process a specially crafted URL via "openpgp4fpr" handler and execute arbitrary code on victim's system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

kleopatra: 18.08.2 - 20.04.3

CPE2.3

• cpe:2.3::kde_org:kleopatra:18.08.2:*:*:*:*:*:*:*
• cpe:2.3::kde_org:kleopatra:18.08.3:*:*:*:*:*:*:*
• cpe:2.3::kde_org:kleopatra:18.11.80:*:*:*:*:*:*:*

External links

https://dev.gnupg.org/rKLEOPATRAb4bd63c1739900d94c04da03045e9445a5a5f54b
https://dev.gnupg.org/source/kleo/browse/master/CMakeLists.txt
https://security.gentoo.org/glsa/202008-21

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.