Buffer overflow in Build Forge



Published: 2022-01-20
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-39275
CWE-ID CWE-119
Exploitation vector Network
Public exploit N/A
Vulnerable software
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IBM Rational Build Forge
Server applications / Other server solutions

Vendor IBM Corporation

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Buffer overflow

EUVDB-ID: #VU56679

Risk: Medium

CVSSv3.1: 4.9 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-39275

CWE-ID: CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system or perform a denial of service attack.

The vulnerability exists due to a boundary error within the ap_escape_quotes()  function. A remote attacker can send a specially crafted request to the web server, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system but requires that the Apache module passes untrusted data to the affected function.

According to vendor, No included modules pass untrusted data to these functions

Mitigation

Install update from vendor's website.

Vulnerable software versions

IBM Rational Build Forge: 8.0.0.0 - 8.0.0.20


CPE2.3 External links

http://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-2021-39275/
http://www.ibm.com/support/pages/node/6541324

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.



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