SB2023112738 - Multiple vulnerabilities in Red Hat Single Sign-On 7.6
Published: November 27, 2023 Updated: December 6, 2024
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 secuirty vulnerabilities.
1) Resource exhaustion (CVE-ID: CVE-2023-44487)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improperly control of consumption for internal resources when handling HTTP/2 requests with compressed HEADERS frames. A remote attacker can send a sequence of compressed HEADERS frames followed by RST_STREAM frames and perform a denial of service (DoS) attack, a.k.a. "Rapid Reset".
Note, the vulnerability is being actively exploited in the wild.
2) LDAP injection (CVE-ID: CVE-2023-33201)
The vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to improper input validation in applications that use an LDAP CertStore from Bouncy Castle to validate X.509 certificates. During the certificate validation process, Bouncy Castle inserts the certificate's Subject Name into an LDAP search filter without any escaping, which leads to an LDAP injection vulnerability. A remote non-authenticated attacker can use a specially crafted X.509 certificate to bypass authentication process and gain unauthorized access to the application.
3) Improper enforcement of behavioral workflow (CVE-ID: CVE-2023-0105)
The vulnerability allows a remote attacker to lock out other users.
The vulnerability exists due to incorrect handling of email trust, caused by handling of the verified account state when changing the email address. A remote attacker can lock our or impersonate other users.
Remediation
Install update from vendor's website.