SB2019081309 - Amazon Linux AMI update for python27

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Main Vulnerability Database SB2019081309

SB2019081309 - Amazon Linux AMI update for python27

Published: August 13, 2019

Security Bulletin ID SB2019081309
Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Medium 50% Low 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Input validation error (CVE-ID: CVE-2019-10160)

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to insufficient validation of user and password parts of a URL. This issue exists due to incorrect patch for previous issue described in SB2019030811 (CVE-2019-9636). A remote attacker can gain access to sensitive information.


2) Exposed dangerous method or function (CVE-ID: CVE-2019-9948)

The vulnerability allows a remote attacker to bypass certain security restrictions.

The vulnerability exists due to urllib implementation in Python 2.x supports the local_file: scheme. An attacker with ability to control input data, such as URL, can bypass protection mechanisms that blacklist file: URIs and view contents of arbitrary file on the system.

PoC: 

urllib.urlopen('local_file:///etc/passwd')

Remediation

Install update from vendor's website.

References