PT-2018-3488 · Gunicorn+1 · Unicorn+1

Jamadden · Published 2018-04-18 · Updated 2019-06-19 · CVE-2018-1000164

Positive Technologies (AI Summary)

CVSS v4.0

8.7

High

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Name of the Vulnerable Software and Affected Versions: gunicorn versions prior to 19.5.0

Description: The issue is related to an improper neutralization of CRLF sequences in HTTP headers, which can be exploited to return arbitrary HTTP headers. This can potentially lead to cross-site scripting (XSS) attacks. The vulnerability is located in the process headers function in gunicorn/http/wsgi.py.

Recommendations: For gunicorn versions prior to 19.5.0, update to version 19.5.0 or later to resolve the issue. As a temporary workaround, consider restricting access to the process headers function in gunicorn/http/wsgi.py to minimize the risk of exploitation.

Exploit

Fix

Weakness Enumeration

CWE-113

CWE-93

Related Identifiers

BDU:2020-02559

CVE-2018-1000164

DLA-1357-1

DSA-4186-1

GHSA-32PC-XPHX-Q4F6

PYSEC-2018-55

USN-4022-1

Affected Products

Ubuntu

Unicorn

References · 23

• 🔥 https://github.com/benoitc/gunicorn/issues/1227 · Exploit
• 🔥 https://epadillas.github.io/2018/04/02/http-header-splitting-in-gunicorn-19.4.5 · Exploit
• https://ubuntu.com/security/CVE-2018-1000164 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2018-1000164 · Vendor Advisory
• https://usn.ubuntu.com/4022-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2018-1000164 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-32pc-xphx-q4f6 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2018-1000164 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2018-1000164 · Security Note
• https://osv.dev/vulnerability/PYSEC-2018-55 · Vendor Advisory
• https://debian.org/security/2018/dsa-4186 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2018-1000164 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-4022-1 · Vendor Advisory
• https://osv.dev/vulnerability/USN-4022-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-1000164 · Security Note