Nginx up to 1.13.5 Autoindex Module integer overflow

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.04

A vulnerability was found in Nginx up to 1.13.5 (Web Server) and classified as critical. This issue affects an unknown code block of the component Autoindex Module. The manipulation with an unknown input leads to a integer overflow vulnerability. Using CWE to declare the problem leads to CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. Impacted is confidentiality, integrity, and availability.

The weakness was published 06/07/2021. The advisory is shared at trac.nginx.org. The identification of this vulnerability is CVE-2017-20005. Neither technical details nor an exploit are publicly available.

Upgrading to version 1.13.6 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Integer overflow
CWE: CWE-190 / CWE-189
ATT&CK: Unknown

Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Nginx 1.13.6
Patch: github.com

Timelineinfo

06/06/2021 🔍
06/07/2021 +1 days 🔍
06/07/2021 +0 days 🔍
06/10/2021 +3 days 🔍

Sourcesinfo

Advisory: trac.nginx.org
Status: Confirmed

CVE: CVE-2017-20005 (🔍)

Entryinfo

Created: 06/07/2021 10:09
Updated: 06/10/2021 10:06
Changes: 06/07/2021 10:09 (39), 06/10/2021 10:06 (5)
Complete: 🔍

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