CVE-2019-1937
CriticalPublic exploitA vulnerability in the web-based management interface of Cisco Integrated Management Controller (IMC) Supervisor, Cisco UCS Director, and Cisco UCS Director Express for Big Data could allow an unauthenticated, remote attacker to acquire a valid session token with administrator…
Published Aug 21, 2019 · Updated Nov 21, 2024
Key Facts
Patch immediately- CVE-2019-1937 is a critical-severity vulnerability (CVSS 9.8 v3) 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 76% probability of exploitation in the next 30 days.
- Fixed versions are available, including Integrated Management Controller Supervisor <=2.2.0.6, Ucs Director <=6.6.1.0, Ucs Director Express For Big Data <=3.7.1.0.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v3
9.8
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
76%
Higher than 99.5% 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-2019-1937 brief as a PDF
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Description
A vulnerability in the web-based management interface of Cisco Integrated Management Controller (IMC) Supervisor, Cisco UCS Director, and Cisco UCS Director Express for Big Data could allow an unauthenticated, remote attacker to acquire a valid session token with administrator privileges, bypassing user authentication. The vulnerability is due to insufficient request header validation during the authentication process. An attacker could exploit this vulnerability by sending a series of malicious requests to an affected device. An exploit could allow the attacker to use the acquired session token to gain full administrator access to the affected device.
Affected Products
6 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Integrated Management Controller SupervisorCisco | See advisory | 2.2.0.6 |
| Ucs DirectorCisco | 6.7\(0.0.67265\) | 6.6.1.0 |
| Ucs Director Express For Big DataCisco | 3.6.0.0 | 3.7.1.0 |
| Cisco Unified Computing System Director | >= unspecified | 6.7.3.0 |
Patched Releases
Integrated Management Controller Supervisor
<=2.2.0.6
Ucs Director
<=6.6.1.0
Ucs Director Express For Big Data
<=3.7.1.0
Cisco Unified Computing System Director
6.7.3.0
Timeline
Publicly disclosed
Aug 21, 2019
Last updated
Nov 21, 2024
Weakness Type
- CWE-287 Improper Authentication
References
- advisory20190828 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 Authentication Bypass Vulnerability
- exploithttp://packetstormsecurity.com/files/154239/Cisco-UCS-IMC-Supervisor-Authentication-Bypass-Command-Injection.html
- exploitMSF cisco_ucs_rce.rb
- exploitExploitDB-51589
FAQ
Common Questions.
A vulnerability in the web-based management interface of Cisco Integrated Management Controller (IMC) Supervisor, Cisco UCS Director, and Cisco UCS Director Express for Big Data could allow an unauthenticated, remote attacker to acquire a valid session token with administrator privileges, bypassing user authentication.
Affected: Integrated Management Controller Supervisor (Cisco); Ucs Director (Cisco) versions 6.7\(0.0.67265\); Ucs Director Express For Big Data (Cisco) versions 3.6.0.0, 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, Ucs Director <=6.6.1.0, Ucs Director Express For Big Data <=3.7.1.0.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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