Information disclosure in IBM Rational Build Forge

1) Out-of-bounds read

EUVDB-ID: #VU56680

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-36160

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary condition in the mod_proxy_uwsgi module in Apache HTTP Server. A remote attacker can send an HTTP request with specially crafted uri-path, trigger an out-of-bounds read and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

IBM Rational Build Forge: 8.0.0.0 - 8.0.0.20

CPE2.3

• cpe:2.3:a:ibm_corporation:ibm_rational_build_forge:8.0.0.0:*:*:*:*:*:*:*
• cpe:2.3:a:ibm_corporation:ibm_rational_build_forge:8.0.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:ibm_corporation:ibm_rational_build_forge:8.0.0.2:*:*:*:*:*:*:*

External links

https://www.ibm.com/blogs/psirt/security-bulletin-ibm-rational-build-forge-8-0-x-is-affected-by-apache-http-server-version-used-in-it-cve-2021-36160/
https://www.ibm.com/support/pages/node/6541320

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.