CVE-2018-1000164 : gunicorn version 19.4.5 contains a CWE-113: Improper Neutralization of CRLF Sequ

gunicorn version 19.4.5 contains a CWE-113: Improper Neutralization of CRLF Sequences in HTTP Headers vulnerability in "process_headers" function in "gunicorn/http/wsgi.py" that can result in an attacker causing the server to return arbitrary HTTP headers. This vulnerability appears to have been fixed in 19.5.0.

Published 2018-04-18 19:29:01

Updated 2019-06-19 22:15:14

Source MITRE

View at NVD, CVE.org

Products affected by CVE-2018-1000164

Debian » Debian Linux » Version: 7.0
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
Matching versions
Debian » Debian Linux » Version: 8.0
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
Matching versions
Gunicorn » Gunicorn » Version: 19.4.5
cpe:2.3:a:gunicorn:gunicorn:19.4.5:*:*:*:*:*:*:*
Matching versions

Threat overview for CVE-2018-1000164

Top countries where our scanners detected CVE-2018-1000164

Top open port discovered on systems with this issue 80

IPs affected by CVE-2018-1000164 2,529

Threat actors abusing to this issue? Yes

Find out if you^* are affected by CVE-2018-1000164!

^*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2018-1000164

EPSS FAQ

0.49%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 73 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2018-1000164

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
5.0	MEDIUM	AV:N/AC:L/Au:N/C:N/I:P/A:N	10.0	2.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: Partial Availability Impact: None
7.5	HIGH	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N	3.9	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: High Availability: None

CWE ids for CVE-2018-1000164

CWE-93 Improper Neutralization of CRLF Sequences ('CRLF Injection')

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.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2018-1000164

https://usn.ubuntu.com/4022-1/

USN-4022-1: Gunicorn vulnerability | Ubuntu security notices
https://lists.debian.org/debian-lts-announce/2018/04/msg00022.html

[SECURITY] [DLA 1357-1] gunicorn security update
Third Party Advisory
https://github.com/benoitc/gunicorn/issues/1227

Potential HTTP Response Splitting Vulnerability · Issue #1227 · benoitc/gunicorn · GitHub
Exploit;Issue Tracking;Third Party Advisory
https://www.debian.org/security/2018/dsa-4186

Debian -- Security Information -- DSA-4186-1 gunicorn
Third Party Advisory
https://epadillas.github.io/2018/04/02/http-header-splitting-in-gunicorn-19.4.5

HTTP header splitting in gunicorn 19.4.5
Exploit;Third Party Advisory