VulnerabilityModified
CVE-2020-15693
In Nim 1.2.4, the standard library httpClient is vulnerable to a CR-LF injection in the target URL.
MEDIUM 6.5EPSS 2.05%
Does this matter?
Lower severity and a low EPSS score (2.05%). Track it; it rarely justifies an emergency change on its own.
Description
In Nim 1.2.4, the standard library httpClient is vulnerable to a CR-LF injection in the target URL. An injection is possible if the attacker controls any part of the URL provided in a call (such as httpClient.get or httpClient.post), the User-Agent header value, or custom HTTP header names or values.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- EPSS
- 2.05% probability · 80th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-74
- Affected
- nim-lang/nim
- Source
- cve@mitre.org
References
- http://www.openwall.com/lists/oss-security/2021/02/04/2Exploit, Mailing List, Third Party Advisory
- https://consensys.net/diligence/vulnerabilities/nim-httpclient-header-crlf-injection/Exploit, Third Party Advisory
- https://github.com/nim-lang/Nim/blob/dc5a40f3f39c6ea672e6dc6aca7f8118a69dda99/lib/pure/httpclient.nim#L1023Patch, Third Party Advisory
- https://nim-lang.org/blog/2020/07/30/versions-126-and-108-released.htmlRelease Notes, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/02/04/2Exploit, Mailing List, Third Party Advisory
- https://consensys.net/diligence/vulnerabilities/nim-httpclient-header-crlf-injection/Exploit, Third Party Advisory
- https://github.com/nim-lang/Nim/blob/dc5a40f3f39c6ea672e6dc6aca7f8118a69dda99/lib/pure/httpclient.nim#L1023Patch, Third Party Advisory
- https://nim-lang.org/blog/2020/07/30/versions-126-and-108-released.htmlRelease Notes, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.