CVE-2021-43350
CRITICALCVSS 9.8/10EPSS 4.43%
Last modified
CVE-2021-43350 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An unauthenticated Apache Traffic Control Traffic Ops user can send a request with a specially-crafted username to the POST /login endpoint of any API version to inject unsanitized content into the LDAP filter.. EPSS estimates a 4.43% chance of exploitation in the next 30 days.
Description
An unauthenticated Apache Traffic Control Traffic Ops user can send a request with a specially-crafted username to the POST /login endpoint of any API version to inject unsanitized content into the LDAP filter.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Apache | Traffic Control | >= 5.1.0, < 5.1.4 | — |
| Apache | Traffic Control | >= 6.0.0, < 6.0.1 | — |
| Apache | Traffic Control | 5.1.4 | Rc0 |
| Apache | Traffic Control | 6.0.1 | Rc0 |
References
- http://www.openwall.com/lists/oss-security/2021/11/11/3Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/11/11/4Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/11/17/1Mailing List, Third Party Advisory
- https://trafficcontrol.apache.org/security/Vendor Advisory
- http://www.openwall.com/lists/oss-security/2021/11/11/3Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/11/11/4Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/11/17/1Mailing List, Third Party Advisory
- https://trafficcontrol.apache.org/security/Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-43350?
An unauthenticated Apache Traffic Control Traffic Ops user can send a request with a specially-crafted username to the POST /login endpoint of any API version to inject unsanitized content into the LDAP filter.
How severe is CVE-2021-43350?
CVE-2021-43350 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 4.43% probability of exploitation in the next 30 days.
How do I fix CVE-2021-43350?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2021-43350?
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Scan your code nowSource: NVD / NIST