Information disclosure in Apache Answer

1) Inadequate Encryption Strength

EUVDB-ID: #VU97713

Risk: Low

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-40761

CWE-ID: CWE-326 - Inadequate Encryption Strength

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to the application uses the MD5 value of a user's email to access Gravatar. A remote attacker with ability to obtain the Avatar URL can recover the user's email address from the MD5 hash.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Answer: 1.0.2 - 1.3.6

CPE2.3

• cpe:2.3:a:apache_foundation:answer:1.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:apache_foundation:answer:1.0.3:*:*:*:*:*:*:*
• cpe:2.3:a:apache_foundation:answer:1.0.4:*:*:*:*:*:*:*

External links

https://lists.apache.org/thread/mmrhsfy16qwrw0pkv0p9kj40vy3sg08x

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.