CVE-2023-38549 Cross-site scripting in One
An unprivileged user can steal NTLM hashes via XSS in the Veeam ONE Web Client, potentially leading to privilege escalation.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2023-38549?
CVE-2023-38549 is a medium-severity cross-site scripting vulnerability in Veeam One, published on 7 Nov 2023. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
A vulnerability in Veeam ONE allows an unprivileged user who has access to the Veeam ONE Web Client the ability to acquire the NTLM hash of the account used by the Veeam ONE Reporting Service. Note: The criticality of this vulnerability is reduced as it requires interaction by a user with the Veeam ONE Administrator role.
Weakness: CWE-79
Which versions are affected by CVE-2023-38549?
It affects 1 product.
Products include Veeam One.
How do I fix CVE-2023-38549?
No fix has been published for CVE-2023-38549 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2023-38549 being exploited?
There is no known exploitation of CVE-2023-38549 in the wild and no public exploit code.
Other vulnerabilities in Veeam One
Sources
Also known as GHSA-5xw6-9h38-rh99.