National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

    Vulnerabilities Detail

CVE-2018-1000164 Detail

Current Description

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.

Source:  MITRE
Description Last Modified:  04/18/2018
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.5 HIGH
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N (V3 legend)
Impact Score: 3.6
Exploitability Score: 3.9

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): High
Availability (A): None

CVSS v2.0 Severity and Metrics:

Base Score: 5.0 MEDIUM
Vector: (AV:N/AC:L/Au:N/C:N/I:P/A:N) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 10.0

Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): None
Integrity (I): Partial
Availability (A): None
Additional Information:
Allows unauthorized modification

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://epadillas.github.io/2018/04/02/http-header-splitting-in-gunicorn-19.4.5 Exploit Third Party Advisory
https://github.com/benoitc/gunicorn/issues/1227 Exploit Issue Tracking Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/04/msg00022.html Third Party Advisory
https://www.debian.org/security/2018/dsa-4186 Third Party Advisory

Technical Details

Vulnerability Type (View All)

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

Change History

3 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-1000164
NVD Published Date:
04/18/2018
NVD Last Modified:
05/22/2018