Vulnerability · Published Sep 15, 2020 · Assigned by lenovo

CVE-2020-8340

Medium 6.3

In plain English

A medium-severity cross-site scripting in System x IMM2 firmware from IBM. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 51% of all known vulnerabilities).

Severity (CVSS 3.1)6.3Medium

Exploit odds (30 days)0.6%top 49.1% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

A cross-site scripting (XSS) vulnerability was discovered in the legacy IBM and Lenovo System x IMM2 (Integrated Management Module 2), prior to version 5.60, embedded Baseboard Management Controller (BMC) web interface during an internal security review. This vulnerability could allow JavaScript code to be executed in the user's web browser if the user is convinced to visit a crafted URL, possibly through phishing. Successful exploitation requires specific knowledge about the user’s network to be included in the crafted URL. Impact is limited to the normal access restrictions and permissions of the user clicking the crafted URL, and subject to the user being able to connect to and already being authenticated to IMM2 or other systems. The JavaScript code is not executed on IMM2 itself.

Affected products (as reported)

Vendor	Product	Versions
Lenovo	System x IMM2 firmware for: x240, Machine Types: 7162, 2588; x440, Machine Type 7167, 2590 ; x3750 M4, Machine Type: 8753 ; x3250 M6, Machine type 3633, 3943 ; nx360 M5, Machine type 5465, 5467 ; x280/x480/x880 X6 , Machine Type 7196, 4258 ; x3850 X6 and x3950 X6, Machine type 6241 ; x3550 M5, Machine Type 5463, 8869 ; x3650 M5, Machine Type 5462, 8871; x3500 M5, Machine Type 5464, 5478	unspecified – before 5.60
Lenovo	System x IMM2 firmware for x240 M5, Machine Types: 9532, 2591	unspecified – before 5.61
IBM	System x IMM2 firmware	unspecified – before 5.60

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

References

https://support.lenovo.com/us/en/product_security/LEN-44717 x_refsource_MISC