CVE-2023-28801 Improper SAML signature verification
Attackers can escalate privileges by bypassing SAML signature verification in the Zscaler Admin UI.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-28801?
CVE-2023-28801 is a critical authentication bypass vulnerability in Zscaler ZIA Admin Portal, published on 31 Aug 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
An Improper Verification of Cryptographic Signature in the SAML authentication of the Zscaler Admin UI allows a Privilege Escalation.This issue affects Admin UI: from 6.2 before 6.2r.
Weakness: CWE-347
Which versions are affected by CVE-2023-28801?
It affects 1 product.
Products include Zscaler Zscaler Internet Access Admin Portal.
How do I fix CVE-2023-28801?
No fix has been published for CVE-2023-28801 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2023-28801 being exploited?
There is no known exploitation of CVE-2023-28801 in the wild and no public exploit code.
Other vulnerabilities in Zscaler ZIA Admin Portal
Sources
Also known as GHSA-wfp5-6m78-crh3.