CVE-2023-33847 IBM CICS TX information disclosure

Low 3.7 Published 8 Jun 2023 Updated 6 Jan 2025

Attackers can steal session cookies via insecure HTTP links, potentially leading to account takeover in IBM CICS TX products.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2023-33847?

CVE-2023-33847 is a low-severity vulnerability in IBM CICS TX Advanced, published on 8 Jun 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

IBM TXSeries for Multiplatforms 8.1, 8.2, 9.1, CICS TX Standard, 11.1, CICS TX Advanced 10.1, and 11.1 does not set the secure attribute on authorization tokens or session cookies. Attackers may be able to get the cookie values by sending a http:// link to a user or by planting this link in a site the user goes to. The cookie will be sent to the insecure link and the attacker can then obtain the cookie value by snooping the traffic. IBM X-Force ID: 257102.

Which versions are affected by CVE-2023-33847?

It affects 2 products.

Products include Ibm Cics Tx, Ibm Txseries for Multiplatform.

How do I fix CVE-2023-33847?

No fix has been published for CVE-2023-33847 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-33847 being exploited?

There is no known exploitation of CVE-2023-33847 in the wild and no public exploit code.

Sources

Also known as GHSA-c9q9-xjvm-h6gf.