Openbmc
Monthly
An authentication bypass in OpenBMC's phosphor-net-ipmid IPMI stack lets a network attacker with no credentials complete IPMI 2.0 RAKP session authentication and obtain full BMC control. A crafted RAKP Message 1 forces the handler to return before the authentication object's constructor defaults are overwritten, so the service accepts a RAKP Message 3 whose HMAC is keyed with the hard-coded 20-byte 'userKey' derived from the string '0penBmc' combined with an often-predictable 'bmcRandomNum'. The flaw affects downstream vendors that ship phosphor-net-ipmid as their IPMI implementation, including NVIDIA and H3C, and runZero published a public advisory; no CISA KEV entry or EPSS score was supplied, and no patched version was identified in the provided data.
Privilege escalation in OpenBMC's phosphor-net-ipmid IPMI stack allows an attacker who already holds a valid low-privileged IPMI session to redirect that session's authorization context to a different, higher-privileged account while the original integrity and encryption keys stay in place, so no re-authentication ever occurs. Downstream vendors that package phosphor-net-ipmid — NVIDIA and H3C among them — inherit the flaw in their BMC firmware. Rated CVSS 8.8 with high confidentiality, integrity and availability impact; no public exploit code identified at time of analysis, and the issue is not listed in CISA KEV.
Arbitrary code execution in IBM OpenBMC FW1060.00 through FW1060.80 is achievable via a path traversal flaw (CWE-22) in the BMC firmware update process, resulting in full confidentiality, integrity, and availability compromise of the baseboard management controller. Exploitation is constrained to authenticated administrators with adjacent network access to the BMC management interface, substantially limiting the real-world attack surface despite the high CIA impact. No public exploit code and no CISA KEV listing have been identified at time of analysis.
A vulnerability in the combination of the OpenBMC's FW1050.00 through FW1050.10, FW1030.00 through FW1030.50, and FW1020.00 through FW1020.60 default password and session management allow an attacker. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
IBM OpenBMC FW1050.00 through FW1050.10 BMCWeb HTTPS server component could disclose sensitive URI content to an unauthorized actor that bypasses authentication channels. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A vulnerability in bmcweb of OpenBMC Project allows user to cause denial of service. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A vulnerability in bmcweb of OpenBMC Project allows user to cause denial of service. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
In OpenBMC 2.9, crafted IPMI messages allow an attacker to bypass authentication and gain full control of the system. Rated critical severity (CVSS 10.0), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
user_channel/passwd_mgr.cpp in OpenBMC phosphor-host-ipmid before 2020-04-03 does not ensure that /etc/ipmi-pass has strong file permissions. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. This Incorrect Default Permissions vulnerability could allow attackers to access resources due to overly permissive default settings.
An authentication bypass in OpenBMC's phosphor-net-ipmid IPMI stack lets a network attacker with no credentials complete IPMI 2.0 RAKP session authentication and obtain full BMC control. A crafted RAKP Message 1 forces the handler to return before the authentication object's constructor defaults are overwritten, so the service accepts a RAKP Message 3 whose HMAC is keyed with the hard-coded 20-byte 'userKey' derived from the string '0penBmc' combined with an often-predictable 'bmcRandomNum'. The flaw affects downstream vendors that ship phosphor-net-ipmid as their IPMI implementation, including NVIDIA and H3C, and runZero published a public advisory; no CISA KEV entry or EPSS score was supplied, and no patched version was identified in the provided data.
Privilege escalation in OpenBMC's phosphor-net-ipmid IPMI stack allows an attacker who already holds a valid low-privileged IPMI session to redirect that session's authorization context to a different, higher-privileged account while the original integrity and encryption keys stay in place, so no re-authentication ever occurs. Downstream vendors that package phosphor-net-ipmid — NVIDIA and H3C among them — inherit the flaw in their BMC firmware. Rated CVSS 8.8 with high confidentiality, integrity and availability impact; no public exploit code identified at time of analysis, and the issue is not listed in CISA KEV.
Arbitrary code execution in IBM OpenBMC FW1060.00 through FW1060.80 is achievable via a path traversal flaw (CWE-22) in the BMC firmware update process, resulting in full confidentiality, integrity, and availability compromise of the baseboard management controller. Exploitation is constrained to authenticated administrators with adjacent network access to the BMC management interface, substantially limiting the real-world attack surface despite the high CIA impact. No public exploit code and no CISA KEV listing have been identified at time of analysis.
A vulnerability in the combination of the OpenBMC's FW1050.00 through FW1050.10, FW1030.00 through FW1030.50, and FW1020.00 through FW1020.60 default password and session management allow an attacker. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
IBM OpenBMC FW1050.00 through FW1050.10 BMCWeb HTTPS server component could disclose sensitive URI content to an unauthorized actor that bypasses authentication channels. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A vulnerability in bmcweb of OpenBMC Project allows user to cause denial of service. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A vulnerability in bmcweb of OpenBMC Project allows user to cause denial of service. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
In OpenBMC 2.9, crafted IPMI messages allow an attacker to bypass authentication and gain full control of the system. Rated critical severity (CVSS 10.0), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
user_channel/passwd_mgr.cpp in OpenBMC phosphor-host-ipmid before 2020-04-03 does not ensure that /etc/ipmi-pass has strong file permissions. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. This Incorrect Default Permissions vulnerability could allow attackers to access resources due to overly permissive default settings.