Multiple vulnerabilities in IBM FOS firmware

Published: 2023-11-07

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2022-4304 CVE-2023-0215
CWE-ID	CWE-208 CWE-416
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	FOS Firmware Hardware solutions / Firmware
Vendor	IBM Corporation

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Information Exposure Through Timing Discrepancy

EUVDB-ID: #VU71993

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-4304

CWE-ID: CWE-208 - Information Exposure Through Timing Discrepancy

Exploit availability: No

Description

The vulnerability allows a remote attacker to obtain sensitive information.

The vulnerability exists due to a timing based side channel exists in the OpenSSL RSA Decryption implementation. A remote attacker can perform a Bleichenbacher style attack and decrypt data sent over the network.

To achieve a successful decryption an attacker would have to be able to send a very large number of trial messages for decryption. The vulnerability affects all RSA padding modes: PKCS#1 v1.5, RSA-OEAP and RSASVE.

Mitigation

Install update from vendor's website.

Vulnerable software versions

FOS Firmware: before 9.2.0a

CPE2.3

cpe:2.3:h:ibm_corporation:fos_firmware:*:*:*:*:*:*:*:*

External links

https://www.ibm.com/support/pages/node/7067691

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) Use-after-free

EUVDB-ID: #VU71995