CVE-2013-5679 — esapi
Fix: ESAPI/esapi-java-legacy@41138feCVE-2013-5679 is a CWE-310 vulnerability in org.owasp.esapi:esapi. 1 public exploit or proof-of-concept reference is indexed, so weaponization risk is real. A fix is available for org.owasp.esapi:esapi — see the affected versions and patch details below.
Missing Cryptographic Step in OWASP Enterprise Security API for Java
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
Real-World Exposure
org.owasp.esapi:esapiReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.
Description
The authenticated-encryption feature in the symmetric-encryption implementation in the OWASP Enterprise Security API (ESAPI) for Java 2.x before 2.1.0 does not properly resist tampering with serialized ciphertext, which makes it easier for remote attackers to bypass intended cryptographic protection mechanisms via an attack against authenticity in the default configuration, involving a null MAC and a zero MAC length.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | org.owasp.esapi:esapi | ≥ 2.0.0&&< 2.1.0 | 2.1.0org.owasp.esapi:esapi:2.1.0 |
Affected Products
enterprise security apiowaspResearch use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.owasp.esapi:esapi, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update org.owasp.esapi:esapi to 2.1.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2013-5679 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
Frequently Asked Questions
Is CVE-2013-5679 in your dependencies?
Find it across Maven, including transitive dependencies.