CVE intelligence and bounded remediation
CVE-2022-27634 — F5 Big-Ip Access Policy Manager security vulnerability
On 16.1.x versions prior to 16.1.2.2 and 15.1.x versions prior to 15.1.5.1, BIG-IP APM does not properly validate configurations, allowing an authenticated attacker with high privileges to manipulate the APM policy leading to privilege escalation/remote code execution. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated
- Severity
- High
- CVSS
- 7.2 (3.1)
- Published
- 2022-05-05
- CISA KEV
- Not currently listed
- Ecosystem
- software/application
- Weaknesses
- CWE-20
Affected products
- f5 / big-ip_access_policy_manager
Showing 1 representative product identities from 2 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.
Matched remediation archetype
Command, code, expression, and template injection
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Check exposure
- Trace untrusted values to process execution, interpreters, evaluators, template engines, dynamic imports, and administrative scripting features.
- Determine whether the affected path is reachable across each trust boundary and which service account or host privilege it inherits.
- Review configuration for optional execution features, unsafe compatibility modes, and shell invocation.
Remediate safely
- Replace string-built commands or evaluated code with fixed operations and structured argument APIs that do not invoke a shell.
- Use strict allowlists for operation identifiers and reject unexpected input before it reaches any interpreter.
- Update the affected component and add inert regression tests covering metacharacters, encoding variants, and alternate request paths.
Authoritative sources
Complete CVE record and remediation plan
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