Python up to 3.8.1 urllib.request.AbstractBasicAuthHandler incorrect regex

Summaryinfo

A vulnerability labeled as problematic has been found in Python up to 2.7.17/3.5.9/3.6.10/3.7.6/3.8.1. This affects an unknown function of the file urllib.request.AbstractBasicAuthHandler. The manipulation results in incorrect regex. This vulnerability is identified as CVE-2020-8492. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in Python up to 2.7.17/3.5.9/3.6.10/3.7.6/3.8.1 (Programming Language Software). It has been classified as problematic. Affected is an unknown part of the file urllib.request.AbstractBasicAuthHandler. The manipulation with an unknown input leads to a incorrect regex vulnerability. CWE is classifying the issue as CWE-185. The product specifies a regular expression in a way that causes data to be improperly matched or compared. This is going to have an impact on availability. CVE summarizes:

Python 2.7 through 2.7.17, 3.5 through 3.5.9, 3.6 through 3.6.10, 3.7 through 3.7.6, and 3.8 through 3.8.1 allows an HTTP server to conduct Regular Expression Denial of Service (ReDoS) attacks against a client because of urllib.request.AbstractBasicAuthHandler catastrophic backtracking.

The weakness was released 01/30/2020. This vulnerability is traded as CVE-2020-8492 since 01/30/2020. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Programming Language Software

Name

• Python

Version

• 2.7.0
• 2.7.1
• 2.7.2
• 2.7.3
• 2.7.4
• 2.7.5
• 2.7.6
• 2.7.7
• 2.7.8
• 2.7.9
• 2.7.10
• 2.7.11
• 2.7.12
• 2.7.13
• 2.7.14
• 2.7.15
• 2.7.16
• 2.7.17
• 3.5.0
• 3.5.1
• 3.5.2
• 3.5.3
• 3.5.4
• 3.5.5
• 3.5.6
• 3.5.7
• 3.5.8
• 3.5.9
• 3.6.0
• 3.6.1
• 3.6.2
• 3.6.3
• 3.6.4
• 3.6.5
• 3.6.6
• 3.6.7
• 3.6.8
• 3.6.9
• 3.6.10
• 3.7.0
• 3.7.1
• 3.7.2
• 3.7.3
• 3.7.4
• 3.7.5
• 3.7.6
• 3.8.0
• 3.8.1

License

• open-source

CPE 2.3info

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CPE 2.2info

• 🔍
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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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