CVE-2017-3768 Denial of service in Integrated Management Module 2 (IMM2)
An unprivileged attacker can cause a denial of service on Lenovo IMM2 by flooding it with authentication failures, exhausting memory and forcing reboots.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2017-3768?
CVE-2017-3768 is a high-severity denial of service vulnerability in Lenovo Group Ltd. Integrated Management Module 2 (IMM2), published on 26 Jan 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An unprivileged attacker with connectivity to the IMM2 could cause a denial of service attack on the IMM2 (Versions earlier than 4.4 for Lenovo System x and earlier than 6.4 for IBM System x). Flooding the IMM2 with a high volume of authentication failures via the Common Information Model (CIM) used by LXCA and OneCLI and other tools can exhaust available system memory which can cause the IMM2 to reboot itself until the requests cease.
Weakness: CWE-400
Which versions are affected by CVE-2017-3768?
It affects 42 products.
Products include Ibm Bladecenter Hs22 Firmware, Ibm Bladecenter Hs23 Firmware, Ibm Bladecenter Hs23e Firmware, Ibm Flex System X220 M4 Firmware, Ibm Flex System X222 M4 Firmware, Ibm Flex System X240 M4 Firmware and 36 more.
How do I fix CVE-2017-3768?
No fix has been published for CVE-2017-3768 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2017-3768 being exploited?
There is no known exploitation of CVE-2017-3768 in the wild and no public exploit code.
Other vulnerabilities in Lenovo Group Ltd. Integrated Management Module 2 (IMM2)
Sources
Also known as GHSA-7pqr-j23w-p43m.