CVE-2019-6159 Cross-site scripting in legacy System x IMM (IMM v1) firmware
An unauthenticated attacker can inject JavaScript into the IMM log, which executes in the victim's browser when viewing logs.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2019-6159?
CVE-2019-6159 is a critical cross-site scripting vulnerability in IBM legacy System x IMM (IMM v1) firmware, published on 19 Aug 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
A stored cross-site scripting (XSS) vulnerability exists in various firmware versions of the legacy IBM System x IMM (IMM v1) embedded Baseboard Management Controller (BMC). This vulnerability could allow an unauthenticated user to cause JavaScript code to be stored in the IMM log which may then be executed in the user's web browser when IMM log records containing the JavaScript code are viewed. The JavaScript code is not executed on IMM itself. The later IMM2 (IMM v2) is not affected.
Weakness: CWE-79
Which versions are affected by CVE-2019-6159?
It affects 15 products.
Products include Lenovo Bladecenter Hs22 Firmware, Lenovo Bladecenter Hs22v Firmware, Lenovo Bladecenter Hx5 Firmware, Lenovo System X3400 M3 Firmware, Lenovo System X3500 M2 Firmware, Lenovo System X3500 M3 Firmware and 9 more.
How do I fix CVE-2019-6159?
No fix has been published for CVE-2019-6159 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-2019-6159 being exploited?
There is no known exploitation of CVE-2019-6159 in the wild and no public exploit code.
Sources
Also known as GHSA-qhp9-p4pv-36mj.