Multiple Vulnerabilities in IBM Virtualization Engine TS7700

Published: 2022-08-16

Risk	Low
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2021-2369 CVE-2021-2432
CWE-ID	CWE-347 CWE-20
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	Virtualization Engine TS7700 3957-VED Hardware solutions / Firmware Virtualization Engine TS7700 3957-VEC Hardware solutions / Firmware
Vendor	IBM Corporation

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Improper Verification of Cryptographic Signature

EUVDB-ID: #VU55058

Risk: Low

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

CVE-ID: CVE-2021-2369

CWE-ID: CWE-347 - Improper Verification of Cryptographic Signature

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to an error in JAR validation implementation. A remote attacker can modify the signed JAR file in a way it will be considered as signed.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Virtualization Engine TS7700 3957-VED: before 8.50.2.6

Virtualization Engine TS7700 3957-VEC: before 8.50.2.6

CPE2.3

External links

https://www.ibm.com/blogs/psirt/security-bulletin-multiple-vulnerabilities-in-ibm-java-sdk-affect-ibm-virtualization-engine-ts7700-july-2021/
https://www.ibm.com/support/pages/node/6507117

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.

2) Improper input validation

EUVDB-ID: #VU55059