Report Reveals cPanel/WHM Suffers "Multiple Vulnerabilities"

Aug 17, 2021 @ 12:00 pm

cPanel Security research firm Fortbridge has released a report claiming to have discovered “multiple vulnerabilities in cPanel/WHM”.

The report states:

“Our team has found multiple vulnerabilities in cPanel/WHM during a black-box pentest, the most important one being a privilege escalation via stored XSS. Whilst disclosing these bugs to the cPanel/WHM team, we discovered the pentested cPanel account was a reseller account with the permission to edit locales, thus this is not a default setting. The XSS vulnerability which we will present is considered a feature, and it was not fixed. We will show how this “feature” can be abused to escalate privileges to root, together with the rest of our findings.”

The report is quite detailed and shows in-depth the path they take to conduct the attack.

So what do you think – is this indeed a “feature” or is it a genuine bug? cPanel has disputed the severity of this issue.

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raindog308

Dread Lord of LowEnd Content at LowEndBox

I'm raindog308, techno polymath and long-time LowEndTalk community Administrator. My technical interests include all things Unix, perl, python, golang, shell scripting, vintage operating systems such as MVS, and relational database systems such as Oracle, PostgreSQL, and MySQL.

I also enjoy using LEBs! I have an empire of little guys for VPNs, larger guys for apps, and big guys for databases and storage. When I'm not in front a screen I'm into German Shepherd dogs, quality knives, target shooting, theology, tabletop roleplaying games, and forest hiking.

I enjoy writing technical articles here on LowEndBox to help people get more out of their systems. You can find me on LowEndTalk @raindog308