SB2018020703 - Multiple vulnerabilities in PHP

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB2018020703

SB2018020703 - Multiple vulnerabilities in PHP

Published: February 7, 2018

Security Bulletin ID SB2018020703
Severity
Low
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Reflected cross-site scripting (CVE-ID: CVE-2018-5712)

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists on the PHAR 404 error page due to insufficient sanitization of user-supplied data. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.


2) Infinite loop (CVE-ID: CVE-2018-5711)

The disclosed vulnerability allows a local unauthenticated attacker to cause DoS condition.

The vulnerability exists  in PHP GD Graphics Library due to insufficient sanitization of user-supplied data. A local attacker can submit a specially crafted GIF, trigger an infinite loop and cause the service to crash.


Remediation

Install update from vendor's website.

References