CVE-2020-15693
MEDIUM 6.5EPSS 2.1%
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 v3.1 NVD
- 6.5 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N - CVSS v2.0 NVD
- 6.4 MEDIUM
AV:N/AC:L/Au:N/C:P/I:P/A:N - EPSS
- 2.13% chance of exploitation in the next 30 days, 82nd percentile
- Published
- 2020-08-14
- Updated
- 2024-08-04
Proof-of-concept exploits (1)
Security advisories
- https://consensys.net/diligence/vulnerabilities/nim-httpclient-header-crlf-injection
- nim-lang/Nim/blob/dc5a40f3f39c6ea672e6dc6aca7f8118a69dda99/lib/pure/httpclient.nim#L1023
- https://nim-lang.org/blog/2020/07/30/versions-126-and-108-released.html