#VU62765 OS Command Injection in OpenSSL - CVE-2022-1292

Vulnerability identifier: #VU62765

Vulnerability risk: Medium

CVSSv4.0: 8.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2022-1292

CWE-ID: CWE-78

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
OpenSSL
Server applications / Encryption software

Vendor: OpenSSL Software Foundation

Description

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

The vulnerability exists due to improper input validation in the c_rehash script distributed by some operating systems. A remote attacker with ability to pass data to c_rehash script can and execute arbitrary OS commands with the privileges of the script.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

OpenSSL: 1.0.2h - 1.0.2p, 1.1.1g - 1.1.1, 3.0.0 - 3.0.2

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External links
https://www.openssl.org/news/secadv/20220503.txt
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=1ad73b4d27bd8c1b369a3cd453681d3a4f1bb9b2
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=e5fd1728ef4c7a5bf7c7a7163ca60370460a6e23
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=548d3f280a6e737673f5b61fce24bb100108dfeb

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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. However, proof of concept for this vulnerability is available.