Python up to 2.7.16/3.7.2 Unicode urllib.parse.urlsplit credentials management

Summaryinfo

A vulnerability classified as problematic was found in Python up to 2.7.16/3.7.2. This vulnerability affects unknown code in the library urllib.parse.urlsplit of the component Unicode Handler. Executing a manipulation can lead to credentials management. This vulnerability is registered as CVE-2019-9636. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability has been found in Python up to 2.7.16/3.7.2 (Programming Language Software) and classified as problematic. This vulnerability affects an unknown function in the library urllib.parse.urlsplit of the component Unicode Handler. The manipulation with an unknown input leads to a credentials management vulnerability. The CWE definition for the vulnerability is CWE-255. As an impact it is known to affect confidentiality. CVE summarizes:

Python 2.7.x through 2.7.16 and 3.x through 3.7.2 is affected by: Improper Handling of Unicode Encoding (with an incorrect netloc) during NFKC normalization. The impact is: Information disclosure (credentials, cookies, etc. that are cached against a given hostname). The components are: urllib.parse.urlsplit, urllib.parse.urlparse. The attack vector is: A specially crafted URL could be incorrectly parsed to locate cookies or authentication data and send that information to a different host than when parsed correctly.

The bug was discovered 03/08/2019. The weakness was published 03/08/2019 with Microsoft (Website). The advisory is available at securityfocus.com. This vulnerability was named CVE-2019-9636 since 03/08/2019. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1552 by the MITRE ATT&CK project.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 277778 (Fedora Security Update for python34 (FEDORA-2019-6baeb15da3)).

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

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 107400†). Similar entries are available at VDB-128349, VDB-130627, VDB-131035 and VDB-132134. 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
• 3.7.0
• 3.7.1
• 3.7.2

License

• open-source

CPE 2.3info

• 🔍
• 🔍
• 🔍

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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