CVE-2019-1935
CriticalPublic exploitA 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…
Published Aug 21, 2019 · Updated Nov 21, 2024
Key Facts
Patch immediately- CVE-2019-1935 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Integrated Management Controller Supervisor (Cisco), Ucs Director (Cisco), Ucs Director Express For Big Data (Cisco) and 1 more product.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 83% probability of exploitation in the next 30 days.
- Fixed versions are available, including Integrated Management Controller Supervisor <=2.2.0.6, Cisco Unified Computing System Director 6.7.3.0, Integrated Management Controller Supervisor 2.2.0.6.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
83%
Higher than 99.6% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2019-1935 brief as a PDF
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Description
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.
Affected Products
15 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Integrated Management Controller SupervisorCisco | 2.1.0.0 | 2.2.0.6 |
| Ucs DirectorCisco | 6.0.0.0, 6.5.0.0, 6.6.0.0, 6.6.1.0, 6.7.0.0, 6.7\(0.0.67265\), 6.7.1.0 | n/a |
| Ucs Director Express For Big DataCisco | 3.0.0.0, 3.5.0.0, 3.6.0.0, 3.7.0.0, 3.7.1.0 | n/a |
| Cisco Unified Computing System Director | >= unspecified | 6.7.3.0 |
Patched Releases
Integrated Management Controller Supervisor
<=2.2.0.6
Cisco Unified Computing System Director
6.7.3.0
Timeline
Publicly disclosed
Aug 21, 2019
Last updated
Nov 21, 2024
Weakness Type
- CWE-798 Use of Hard-coded Credentials
References
- advisoryhttp://packetstormsecurity.com/files/154305/Cisco-UCS-Director-Default-scpuser-Password.html
- advisory20190830 Multiple vulns in Cisco UCS Director: from unauth remote access to code execution as root
- advisory20190821 Cisco Integrated Management Controller Supervisor, Cisco UCS Director, and Cisco UCS Director Express for Big Data SCP User Default Credentials Vulnerability
- exploithttp://packetstormsecurity.com/files/154239/Cisco-UCS-IMC-Supervisor-Authentication-Bypass-Command-Injection.html
- exploitMSF cisco_ucs_scpuser.rb
FAQ
Common Questions.
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.
Affected: Integrated Management Controller Supervisor (Cisco) versions 2.1.0.0; Ucs Director (Cisco) versions 6.0.0.0, 6.5.0.0, 6.6.0.0, 6.6.1.0, 6.7.0.0, 6.7\(0.0.67265\), 6.7.1.0; Ucs Director Express For Big Data (Cisco) versions 3.0.0.0, 3.5.0.0, 3.6.0.0, 3.7.0.0, 3.7.1.0, among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Integrated Management Controller Supervisor <=2.2.0.6, Cisco Unified Computing System Director 6.7.3.0, Integrated Management Controller Supervisor 2.2.0.6.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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