CVE-2019-1935
highpriority · attend · 78OT risk · highEPSS 0.834 · 100 %ileexploit · weaponizedEURUUSEPSS · scored 2026-10-26
A vulnerability in Cisco Integrated Management Controller (IMC) Supervisor, Cisco UCS Director, and Cisco UCS Director Express for Big Data could allow an unauthenticated, remote attacker to log in to the CLI of an affected system by using the SCP User account (scpuser), which has default user credentials. The vulnerability is due to the presence of a documented default account with an undocumented default password and incorrect permission settings for that account. Changing the default password for this account is not enforced during the installation of the product. An attacker could exploit this vulnerability by using the account to log in to an affected system. A successful exploit could allow the attacker to execute arbitrary commands with the privileges of the scpuser account. This includes full read and write access to the system's database.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- FixedCisco Integrated Management Controller (IMC) Supervisorcisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco UCS Directorcisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Unified Computing System Director Express for Big Data cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - WorkaroundCisco Integrated Management Controller (IMC) Supervisorcisco_csaf
Setting a custom password for the scpuser account under Administration > Users and Groups > SCP User Configuration will prevent exploitation of this vulnerability.
- WorkaroundCisco UCS Directorcisco_csaf
Setting a custom password for the scpuser account under Administration > Users and Groups > SCP User Configuration will prevent exploitation of this vulnerability.
- WorkaroundCisco Unified Computing System Director Express for Big Data cisco_csaf
Setting a custom password for the scpuser account under Administration > Users and Groups > SCP User Configuration will prevent exploitation of this vulnerability.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 9.8–10
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
exploits (2)
Public proof-of-concept and weaponised exploit code.
- exploit/linux/ssh/cisco_ucs_scpuserCisco UCS Director default scpuser passwordweaponized · metasploit
- EDB-47346Cisco UCS Director - default scpuser password (Metasploit)functional · exploit_db
affected products (28)
Products and version ranges known to be affected.
- cisco integrated management controller supervisor= 2.1.0.0nvdUScpe:2.3:a:cisco:integrated_management_controller_supervisor:*:*:*:*:*:*:*:*
- cisco integrated management controller supervisor2.2.0.0 → 2.2.0.6nvdUScpe:2.3:a:cisco:integrated_management_controller_supervisor:*:*:*:*:*:*:*:*
advisories (1)
Vendor and ecosystem advisories describing this.
- cisco-sa-20190821-imcs-usercredCisco Integrated Management Controller Supervisor, Cisco UCS Director, and Cisco UCS Director Express for Big Data SCP User Default Credentials Vulnerability2019-08-21csaf · cisco_csafUS
A vulnerability in Cisco Integrated Management Controller (IMC) Supervisor, Cisco UCS Director, and Cisco UCS Director Express for Big Data could allow an unauthenticated, remote attacker to log in to the CLI of an affected system by using the SCP User account (scpuser), which has default user credentials. The vulnerability is due to the presence of a documented default account with an undocumented default password and incorrect permission settings for that account. Changing the default password for this account is not enforced during the installation of the product. An attacker could exploit this vulnerability by using the account to log in to an affected system. A successful exploit could allow the attacker to execute arbitrary commands with the privileges of the scpuser account. This includes full read and write access to the system's database. Cisco has released software updates that address this vulnerability. There are workarounds that address this vulnerability.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (16)
External citations — patches, advisories, analysis.
- https://nvd.nist.gov/vuln/detail/CVE-2019-1935cnnvd
- https://packetstormsecurity.com/files/154239/Cisco-UCS-IMC-Supervisor-Authentication-Bypass-Command-Injection.htmlcnnvd
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190821-imcs-usercredcnnvd
- https://vigilance.fr/vulnerability/Cisco-UCS-Director-three-vulnerabilities-30177cnnvd
- https://www.auscert.org.au/bulletins/ESB-2019.3212/cnnvd
- https://www.exploit-db.com/exploits/47346cnnvd
- http://packetstormsecurity.com/files/154239/Cisco-UCS-IMC-Supervisor-Authentication-Bypass-Command-Injection.htmlenisa_euvd
- http://packetstormsecurity.com/files/154305/Cisco-UCS-Director-Default-scpuser-Password.htmlenisa_euvd
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