Auth bypass in Ibm 1g L2-7 Slb Switch For Bladecenter
CVE-2017-3765
In Enterprise Networking Operating System (ENOS) in Lenovo and IBM RackSwitch and BladeCenter products, an authentication bypass known as "HP Backdoor" was discovered during a Lenovo security audit in the serial console, Telnet, SSH, and Web interfaces. This bypass mechanism can be accessed when performing local authentication under specific circumstances. If exploited, admin-level access to the switch is granted.
Vulnerability class: Broken Authentication
EPSS: 0.003 (18.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.0 (High). Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Ibm 1g_l2-7_slb_switch_for_bladecenter
- Ibm Bladecenter_1\ — versions 10g_uplink_ethernet_switch_module
- Ibm Bladecenter_layer_2\/3_copper_ethernet_switch_module
- Ibm Bladecenter_virtual_fabric_10gb_switch_module
- Ibm Flex_system_en2092_1gb_ethernet_scalable_switch
- Ibm Flex_system_fabric_cn4093_10gb_converged_scalable_switch
- Ibm Flex_system_fabric_en4093\/en4093r_10gb_scalable_switch
- Ibm Flex_system_fabric_si4093_10gb_system_interconnect_module
- Ibm Rackswitch_g8052
- Ibm Rackswitch_g8124
Weakness classification (CWE)
References
- psirt@lenovo.com (x_refsource_CONFIRM, Patch, Mitigation, Vendor Advisory)
- psirt@lenovo.com (Third Party Advisory, vdb-entry, x_refsource_SECTRACK)
Frequently asked questions
- What is CVE-2017-3765?
- CVE-2017-3765 is a high-severity vulnerability in Ibm 1g L2-7 Slb Switch For Bladecenter, classified under Improper Authentication. CVSS score: 7.0/10. Published 2018-01-10.
- How severe is CVE-2017-3765?
- High severity. CVSS v3 base score is 7.0 out of 10.