SB2023072567 - Tenable Security Center 5 update for OpenSSL

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Main Vulnerability Database SB2023072567

SB2023072567 - Tenable Security Center 5 update for OpenSSL

Published: July 25, 2023

Security Bulletin ID SB2023072567
Severity
Medium
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 33% Low 67%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 secuirty vulnerabilities.


1) Improper Verification of Cryptographic Signature (CVE-ID: CVE-2023-0465)

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to an error when validating certificate policies in leaf certificates. A remote attacker that controls a malicious CA server can issue a certificate that will be validated by the application.


2) Security features bypass (CVE-ID: CVE-2023-0466)

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to an error within the X509_VERIFY_PARAM_add0_policy() function, which does not perform the certificate policy check despite being implicitly enabled. A remote attacker can bypass expected security restrictions and perform MitM attack.


3) Resource management error (CVE-ID: CVE-2023-2650)

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

The vulnerability exists due to improper management of internal resources within the application when processing OCSP, PKCS7/SMIME, CMS, CMP/CRMF or TS subsystems with no message size limit. A remote attacker can send specially crafted data to the application and perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.

References