Multiple vulnerabilities in IBM Sterling External Authentication Server



Published: 2023-09-21
Risk Medium
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2021-33502
CVE-2022-35720
CWE-ID CWE-185
CWE-327
Exploitation vector Network
Public exploit N/A
Vulnerable software
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IBM Sterling External Authentication Server
Server applications / Other server solutions

Vendor IBM Corporation

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Incorrect Regular Expression

EUVDB-ID: #VU63698

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2021-33502

CWE-ID:

Exploit availability:

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to exponential performance for data. A remote attacker can pass specially crafted data to the application and perform a regular expression denial of service (ReDos) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

IBM Sterling External Authentication Server: before 6.1.0.0 iFix02

Fixed software versions

CPE2.3 External links

http://www.ibm.com/support/pages/node/6890669


Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

2) Use of a broken or risky cryptographic algorithm

EUVDB-ID: #VU81037

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-35720

CWE-ID:

Exploit availability:

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output by the application. A local user can gain unauthorized access to sensitive information on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

IBM Sterling External Authentication Server: before 6.1.0.0 iFix02

Fixed software versions

CPE2.3 External links

http://www.ibm.com/support/pages/node/6890669


Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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