CVE-2020-15690
CRITICALCVSS 9.8/10EPSS 3.18%
Last modified
CVE-2020-15690 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. In Nim before 1.2.6, the standard library asyncftpclient lacks a check for whether a message contains a newline character.. EPSS estimates a 3.18% chance of exploitation in the next 30 days.
Description
In Nim before 1.2.6, the standard library asyncftpclient lacks a check for whether a message contains a newline character.
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 |
|---|---|---|
| Nim-Lang | Nim | < 1.2.6 |
References
- http://www.openwall.com/lists/oss-security/2021/02/04/3Exploit, Mailing List, Third Party Advisory
- https://consensys.net/diligence/vulnerabilities/nim-asyncftpd-crlf-injection/Exploit, Third Party Advisory
- https://github.com/nim-lang/Nim/blob/dc5a40f3f39c6ea672e6dc6aca7f8118a69dda99/lib/pure/asyncftpclient.nim#L145Exploit, Third Party Advisory
- https://github.com/nim-lang/Nim/compare/v1.2.4...v1.2.6Patch, Third Party Advisory
- https://github.com/tintinweb/pub/tree/master/pocs/cve-2020-15690Exploit, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/02/04/3Exploit, Mailing List, Third Party Advisory
- https://consensys.net/diligence/vulnerabilities/nim-asyncftpd-crlf-injection/Exploit, Third Party Advisory
- https://github.com/nim-lang/Nim/blob/dc5a40f3f39c6ea672e6dc6aca7f8118a69dda99/lib/pure/asyncftpclient.nim#L145Exploit, Third Party Advisory
- https://github.com/nim-lang/Nim/compare/v1.2.4...v1.2.6Patch, Third Party Advisory
- https://github.com/tintinweb/pub/tree/master/pocs/cve-2020-15690Exploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-15690?
In Nim before 1.2.6, the standard library asyncftpclient lacks a check for whether a message contains a newline character.
How severe is CVE-2020-15690?
CVE-2020-15690 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 3.18% probability of exploitation in the next 30 days.
How do I fix CVE-2020-15690?
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-2020-15690?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST