CVE-2017-3768
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).
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.21%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.21% probability · 67th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-400
- Affected
- lenova/flex system x240 m5 firmware · lenova/flex system x280 x6 firmware · lenova/flex system x440 m4 firmware · lenova/flex system x480 x6 firmware · lenova/flex system x880 firmware · lenova/nextscale nx360 m5 firmware · lenova/system x3250 m6 firmware · lenova/system x3500 m5 firmware · lenova/system x3550 m5 firmware · lenova/system x3650 m5 firmware · lenova/system x3750 m4 firmware · lenova/system x3850 x6 firmware · lenova/system x3950 x6 firmware · lenova/flex system x240 m4 firmware · 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 · +22 more
- Source
- psirt@lenovo.com
References
- https://support.lenovo.com/us/en/product_security/LEN-14450Vendor Advisory
- https://support.lenovo.com/us/en/product_security/LEN-14450Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.