CVE-2020-26100

chsh in cPanel before 88.0.3 allows a Jailshell escape (SEC-497)

published September 25, 2020

CVSS
—
EPSS
2%
Percentile
75.8
In the wild
Unconfirmed
What it is

⚠️ A Jailshell escape is lurking in cPanel versions before 88.0.3! This vulnerability could let users break out of their restricted environment like Houdini in a straightjacket! 🎩 Think of it like a guest in a hotel room who finds a way to sneak into the penthouse suite. Just because the doors are locked doesn’t mean they can’t figure out a way to access areas they shouldn’t! An attacker exploiting this vulnerability could potentially gain unauthorized access to the underlying server, allowing them to execute commands outside their original environment. This could lead to data theft or even server manipulation, so it’s crucial to address it before it becomes a problem!

Put simply

Think of it like a guest in a hotel room who finds a way to sneak into the penthouse suite. Just because the doors are locked doesn’t mean they can’t figure out a way to access areas they shouldn’t! The chsh command in cPanel versions prior to 88.0.3 allows users to break out of their Jailshell, which is supposed to restrict them to their own directory. This escape grants them greater access than intended—yikes!

What to do

An attacker exploiting this vulnerability could potentially gain unauthorized access to the underlying server, allowing them to execute commands outside their original environment. This could lead to data theft or even server manipulation, so it’s crucial to address it before it becomes a problem! Upgrade cPanel to at least version 88.0.3 to close off this escape route. Regularly check for updates and stay informed about security patches to maintain a robust security posture. You’ve got this! Patch up and keep your server safe! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01611 · 75.8th percentile
Published
2020-09-25T05:43Z
EPSS history
Timeline
  • 25 SEP 05:43Z
    chsh in cPanel before 88.0.3 allows a Jailshell escape (SEC-497)
    cvelistv5