CVE Vulnerability

CVE-2020-15694

In Nim 1.2.4, the standard library httpClient fails to properly validate the server response. For example, httpClient.get().contentLength() does not raise any error if a malicious server provides a negative Content-Length.

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

Scope

7.5 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://nim-lang.org/blog/2020/07/30/versions-126-and-108-released.html Release Notes Third Party Advisory
https://github.com/nim-lang/Nim/blob/dc5a40f3f39c6ea672e6dc6aca7f8118a69dda99/lib/pure/httpclient.nim#L241 Patch Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/02/04/2 Exploit Mailing List
https://consensys.net/diligence/vulnerabilities/nim-httpclient-header-crlf-injection/ Exploit Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:nim-lang:nim:*:*:*:*:*:*:*:*
Information

Published : 2020-08-14 07:15

Updated : 2021-02-08 08:39

NVD link : CVE-2020-15694

Mitre link : CVE-2020-15694

Products Affected
No products.
CWE
CWE-20