CVE-2022-26890 vulnerability in F5 Networks Products
Published on May 5, 2022
On F5 BIG-IP Advanced WAF, ASM, and APM 16.1.x versions prior to 16.1.2.1, 15.1.x versions prior to 15.1.5, 14.1.x versions prior to 14.1.4.6, and 13.1.x versions prior to 13.1.5, when ASM or Advanced WAF, as well as APM, are configured on a virtual server, the ASM policy is configured with Session Awareness, and the "Use APM Username and Session ID" option is enabled, undisclosed requests can cause the bd process to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated
Vulnerability Analysis
CVE-2022-26890 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.
Weakness Type
Always-Incorrect Control Flow Implementation
The code contains a control flow path that does not reflect the algorithm that the path is intended to implement, leading to incorrect behavior any time this path is navigated. This weakness captures cases in which a particular code segment is always incorrect with respect to the algorithm that it is implementing. For example, if a C programmer intends to include multiple statements in a single block but does not include the enclosing braces (CWE-483), then the logic is always incorrect. This issue is in contrast to most weaknesses in which the code usually behaves correctly, except when it is externally manipulated in malicious ways.
Products Associated with CVE-2022-26890
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Affected Versions
F5 BIG-IP Advanced WAF, ASM, and APM:- Version 12.1.x is unaffected.
- Version 11.6.x is unaffected.
- Version 17.0.0 and below 17.0.x* is unaffected.
- Version 16.1.x and below 16.1.2.1 is affected.
- Version 15.1.x and below 15.1.5 is affected.
- Version 14.1.x and below 14.1.4.6 is affected.
- Version 13.1.x and below 13.1.5 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.