#VU77134 Security features bypass in IBM CICS TX Standard - CVE-2023-33847

Vulnerability identifier: #VU77134

Vulnerability 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-2023-33847

CWE-ID: CWE-254

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
IBM CICS TX Standard
Universal components / Libraries / Software for developers

Vendor: IBM Corporation

Description

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

The vulnerability exists due to IBM CICS TX Standard does not set the secure attribute on authorization tokens or session cookies. A remote attacker can get the cookie values by sending a http:// link to a user or by planting this link in a site the user goes to.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

IBM CICS TX Standard: before 11.1.0.0

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External links
https://exchange.xforce.ibmcloud.com/vulnerabilities/257102
https://www.ibm.com/support/pages/node/7001641
https://www.ibm.com/support/pages/node/7001635
https://www.ibm.com/support/pages/node/7001645

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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.