CVE-2015-0138 Weak cryptography in n/a

Medium 4.3 Published 25 Mar 2015 Updated 6 Aug 2024

Remote attackers can downgrade TLS connections to weak EXPORT_RSA ciphers, bypassing security protections in IBM Directory Server.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2015-0138?

CVE-2015-0138 is a medium-severity vulnerability in n/a, published on 25 Mar 2015. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

GSKit in IBM Tivoli Directory Server (ITDS) 6.0 before 6.0.0.73-ISS-ITDS-IF0073, 6.1 before 6.1.0.66-ISS-ITDS-IF0066, 6.2 before 6.2.0.42-ISS-ITDS-IF0042, and 6.3 before 6.3.0.35-ISS-ITDS-IF0035 and IBM Security Directory Server (ISDS) 6.3.1 before 6.3.1.9-ISS-ISDS-IF0009 does not properly restrict TLS state transitions, which makes it easier for remote attackers to conduct cipher-downgrade attacks to EXPORT_RSA ciphers via crafted TLS traffic, related to the "FREAK" issue, a different vulnerability than CVE-2015-0204.

Weakness: CWE-310

Which versions are affected by CVE-2015-0138?

It affects 1 product.

Products include Ibm Tivoli Directory Server.

How do I fix CVE-2015-0138?

Apply the vendor's patch.

Is CVE-2015-0138 being exploited?

There is no known exploitation of CVE-2015-0138 in the wild and no public exploit code.

Sources

Also known as GHSA-wff6-5qmg-74j3.