Vulnerability CVE-2020-15690
Published: 2021-01-30

Description:
In Nim before 1.2.6, the standard library asyncftpclient lacks a check for whether a message contains a newline character.

Type:

CWE-74

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.5/10
6.4/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Nim-lang -> NIM 

 References:
http://www.openwall.com/lists/oss-security/2021/02/04/3
https://consensys.net/diligence/vulnerabilities/nim-asyncftpd-crlf-injection/
https://github.com/nim-lang/Nim/blob/dc5a40f3f39c6ea672e6dc6aca7f8118a69dda99/lib/pure/asyncftpclient.nim#L145
https://github.com/nim-lang/Nim/compare/v1.2.4...v1.2.6
https://github.com/tintinweb/pub/tree/master/pocs/cve-2020-15690
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