CVE-2013-4784
The HP Integrated Lights-Out (iLO) BMC implementation allows remote attackers to bypass authentication and execute arbitrary IPMI commands by using cipher suite 0 (aka cipher zero) and an arbitrary password.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 49.6%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
Description
The HP Integrated Lights-Out (iLO) BMC implementation allows remote attackers to bypass authentication and execute arbitrary IPMI commands by using cipher suite 0 (aka cipher zero) and an arbitrary password.
- CVSS 2.0
- 10.0 HIGHAV:N/AC:L/Au:N/C:C/I:C/A:C
- EPSS
- 49.59% probability · 99th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-287
- Affected
- hp/integrated lights-out bmc
- Source
- cve@mitre.org
EPSS 49.6% since 4 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://fish2.com/ipmi/cipherzero.html
- http://osvdb.org/show/osvdb/93040
- http://www.metasploit.com/modules/auxiliary/scanner/ipmi/ipmi_cipher_zero
- http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html
- http://www.wired.com/threatlevel/2013/07/ipmi/
- https://exchange.xforce.ibmcloud.com/vulnerabilities/85569
- https://lists.gnu.org/archive/html/freeipmi-devel/2013-02/msg00013.html
- http://fish2.com/ipmi/cipherzero.html
- http://osvdb.org/show/osvdb/93040
- http://www.metasploit.com/modules/auxiliary/scanner/ipmi/ipmi_cipher_zero
- http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html
- http://www.wired.com/threatlevel/2013/07/ipmi/
- https://exchange.xforce.ibmcloud.com/vulnerabilities/85569
- https://lists.gnu.org/archive/html/freeipmi-devel/2013-02/msg00013.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.