Code execution via unsafe deserialization gadget chain
Published Dec 9, 2024 · Updated Dec 16, 2024
Object injection in Drupal core 8.0.0 through 10.2.10, 10.3.0 through 10.3.8, and 11.0.0 through 11.0.7 gives attackers a code-execution gadget chain. The vendor identifies a chain of methods that becomes a PHP object-injection gadget when an application passes attacker-controlled data to unserialize(), but does not disclose the methods. The chain presents no direct threat alone; code execution requires a separate flaw that exposes unsafe deserialization, and Drupal reports no such known flaw in core.
Summary
What happened
Object injection in Drupal core 8.0.0 through 10.2.10, 10.3.0 through 10.3.8, and 11.0.0 through 11.0.7 gives attackers a code-execution gadget chain. The vendor identifies a chain of methods that becomes a PHP object-injection gadget when an application passes attacker-controlled data to unserialize(), but does not disclose the methods. The chain presents no direct threat alone; code execution requires a separate flaw that exposes unsafe deserialization, and Drupal reports no such known flaw in core.
The record
- CVE
- CVE-2024-55637
- Published
- Dec 9, 2024
- Updated
- Dec 16, 2024
- Vendor
- OAuth.js
- Product
- Drupal core
- Classifications
- CWE-915, CAPEC-586
- Attack vector
- Unavailable
- Privileges
- Unavailable
Timeline
How it unfolded
- Dec 9, 2024CVE publishedPublication date reported by the CVE source.
- Dec 16, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=10.3.0 <10.3.9
- Affected versionversion=11.0.0 <11.0.8
- Affected versionversion=8.0.0 <10.2.11
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
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