CVE Vulnerabilities

CVE-2020-11078

Improper Neutralization of CRLF Sequences ('CRLF Injection')

Published: May 20, 2020 | Modified: Nov 07, 2023
CVSS 3.x
6.8
MEDIUM
Source:
NVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N
CVSS 2.x
4.3 MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:N
RedHat/V2
RedHat/V3
Ubuntu

In httplib2 before version 0.18.0, an attacker controlling unescaped part of uri for httplib2.Http.request() could change request headers and body, send additional hidden requests to same server. This vulnerability impacts software that uses httplib2 with uri constructed by string concatenation, as opposed to proper urllib building with escaping. This has been fixed in 0.18.0.

Weakness

The product uses CRLF (carriage return line feeds) as a special element, e.g. to separate lines or records, but it does not neutralize or incorrectly neutralizes CRLF sequences from inputs.

Affected Software

Name Vendor Start Version End Version
Httplib2 Httplib2_project * 0.18.0 (excluding)

Potential Mitigations

References