CVE-2017-5677

PEAR HTML_AJAX 0.3.0 through 0.5.7 has a PHP Object Injection Vulnerability in the PHP Serializer

published February 6, 2017

CVSS
—
EPSS
5%
Percentile
91.9
In the wild
Unconfirmed
What it is

⚠️ A twist in the PHP serializer could let attackers execute remote code! This vulnerability in PEAR HTML_AJAX makes it alarmingly easy for the wrong person to take control. 😱 Think of this vulnerability as a delivery service that accepts any package without checking what’s inside before sending it off — it makes it a prime target for mischief. An attacker could craft a malicious payload that exploits this flaw, leading to remote code execution on the server. This means they could potentially manipulate the server, steal data, or cause all sorts of chaos without raising a red flag.

Put simply

Think of this vulnerability as a delivery service that accepts any package without checking what’s inside before sending it off — it makes it a prime target for mischief. The vulnerability lies in the PHP Object Injection within the PEAR HTML_AJAX library, affecting versions 0.3.0 through 0.5.7. An incorrect regular expression allows attackers to inject malicious objects, resulting in remote code execution.

What to do

An attacker could craft a malicious payload that exploits this flaw, leading to remote code execution on the server. This means they could potentially manipulate the server, steal data, or cause all sorts of chaos without raising a red flag. To safeguard your systems, upgrade to the latest version of PEAR HTML_AJAX that addresses this issue. Conduct a thorough code review and implement proper input validations. It's also wise to monitor your server for unusual activity. You've got this! By following these steps, you'll be well on your way to keeping your systems secure. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.04826 · 91.9th percentile
Published
2017-02-06T18:00Z
EPSS history
Timeline
  • 06 FEB 18:00Z
    PEAR HTML_AJAX 0.3.0 through 0.5.7 has a PHP Object Injection Vulnerability in the PHP Serializer
    cvelistv5