Twisted up to 16.3.0 Namespace HTTP_PROXY direct request

HistoryDiffrelatejsonxmlCTI

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.8	$0-$5k	0.00

Summaryinfo

A vulnerability has been found in Twisted up to 16.3.0 and classified as problematic. Impacted is an unknown function of the component Namespace Handler. The manipulation of the argument HTTP_PROXY leads to direct request. This vulnerability is documented as CVE-2016-1000111. The attack can be initiated remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Twisted up to 16.3.0 and classified as critical. This issue affects an unknown part of the component Namespace Handler. The manipulation of the argument HTTP_PROXY with an unknown input leads to a direct request vulnerability. Using CWE to declare the problem leads to CWE-425. The web application does not adequately enforce appropriate authorization on all restricted URLs, scripts, or files. Impacted is integrity, and availability. The summary by CVE is:

Twisted before 16.3.1 does not attempt to address RFC 3875 section 4.1.18 namespace conflicts and therefore does not protect CGI applications from the presence of untrusted client data in the HTTP_PROXY environment variable, which might allow remote attackers to redirect a CGI application's outbound HTTP traffic to an arbitrary proxy server via a crafted Proxy header in an HTTP request, aka an "httpoxy" issue.

The weakness was released 04/22/2023 as 8623. It is possible to read the advisory at twistedmatrix.com. The identification of this vulnerability is CVE-2016-1000111 since 07/18/2016. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 197072 (Ubuntu Security Notification for Twisted Vulnerability (USN-3585-1)).

Upgrading to version 16.3.1 eliminates this vulnerability.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

Twisted

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
NVD Vector: 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Direct request
CWE: CWE-425
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Twisted 16.3.1

Timelineinfo

07/18/2016 🔍
04/22/2023 +2469 days 🔍
04/22/2023 +0 days 🔍
11/26/2024 +583 days 🔍

Sourcesinfo

Advisory: 8623
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-1000111 (🔍)
GCVE (CVE): GCVE-0-2016-1000111
GCVE (VulDB): GCVE-100-227111

Entryinfo

Created: 04/22/2023 08:28
Updated: 11/26/2024 00:09
Changes: 04/22/2023 08:28 (58), 10/25/2024 04:48 (17), 11/26/2024 00:09 (1)
Complete: 🔍
Cache ID: 216::103