Remote code execution in Apache Commons BCEL

1) Out-of-bounds write

EUVDB-ID: #VU69809

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-42920

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input within the API. A remote attacker can create a specially crafted request to the affected application, trigger an out-of-bounds write and execute arbitrary code on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Apache Commons BCEL: 5.0 - 6.5.0

CPE2.3

• cpe:2.3:a:apache_foundation:bcel:5.0:*:*:*:*:*:*:*
• cpe:2.3:a:apache_foundation:bcel:5.1:*:*:*:*:*:*:*
• cpe:2.3:a:apache_foundation:bcel:5.2:*:*:*:*:*:*:*

External links

https://lists.apache.org/thread/lfxk7q8qmnh5bt9jm6nmjlv5hsxjhrz4
https://www.openwall.com/lists/oss-security/2022/11/07/2

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.