Multiple vulnerabilities in IBM z/Transaction Processing Facility ( z/TPF)

Published: 2022-09-23 | Updated: 2023-01-19

Risk	High
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2022-34169 CVE-2022-21549
CWE-ID	CWE-20
Exploitation vector	Network
Public exploit	Public exploit code for vulnerability #1 is available.
Vulnerable software Subscribe	z/Transaction Processing Facility ( z/TPF) Server applications / Other server solutions
Vendor	IBM Corporation

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Improper input validation

EUVDB-ID: #VU65495

Risk: High

CVSSv3.1: 8.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2022-34169

CWE-ID: CWE-20 - Improper input validation

Exploit availability: Yes

Description

The vulnerability allows a remote non-authenticated attacker to compromise the affected system.

The vulnerability exists due to an integer truncation issue when processing malicious XSLT stylesheets. A remote non-authenticated attacker can pass specially crafted data to the application to corrupt Java class files generated by the internal XSLTC compiler and execute arbitrary Java bytecode.

Mitigation

Install update from vendor's website.

Vulnerable software versions

z/Transaction Processing Facility ( z/TPF): 1.1

External links

http://www.ibm.com/blogs/psirt/security-bulletin-multiple-vulnerabilities-in-ibm-semeru-runtime-affect-z-transaction-processing-facility/

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. However, proof of concept for this vulnerability is available.

2) Improper input validation

EUVDB-ID: #VU65498

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-21549