CVE-2020-27131
CriticalMultiple vulnerabilities in the Java deserialization function that is used by Cisco Security Manager could allow an unauthenticated, remote attacker to execute arbitrary commands on an affected device.
Published Nov 17, 2020 · Updated Nov 21, 2024
Key Facts
Patch immediately- CVE-2020-27131 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Security Manager (Cisco).
- It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
- EPSS estimates a 88% probability of exploitation in the next 30 days.
- Fixed versions are available, including Security Manager <=4.22, Security Manager 4.22.
- 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)
88%
Higher than 99.7% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
None known
Get the full CVE-2020-27131 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
Multiple vulnerabilities in the Java deserialization function that is used by Cisco Security Manager could allow an unauthenticated, remote attacker to execute arbitrary commands on an affected device. These vulnerabilities are due to insecure deserialization of user-supplied content by the affected software. An attacker could exploit these vulnerabilities by sending a malicious serialized Java object to a specific listener on an affected system. A successful exploit could allow the attacker to execute arbitrary commands on the device with the privileges of NT AUTHORITY\SYSTEM on the Windows target host. Cisco has not released software updates that address these vulnerabilities.
Affected Products
2 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Security ManagerCisco | >= n/a | 4.22 |
Patched Releases
Security Manager
<=4.22
Timeline
Publicly disclosed
Nov 17, 2020
Last updated
Nov 21, 2024
Weakness Type
- CWE-20 Improper Input Validation
- CWE-502 Deserialization of Untrusted Data
References
FAQ
Common Questions.
Multiple vulnerabilities in the Java deserialization function that is used by Cisco Security Manager could allow an unauthenticated, remote attacker to execute arbitrary commands on an affected device.
Affected: Security Manager (Cisco) versions >= n/a. 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.
No public exploit code is known.
Fixed versions are available, including Security Manager <=4.22, Security Manager 4.22.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
Is CVE-2020-27131 Running On Your Attack Surface?
Brandefense maps vulnerabilities like this one to your internet-facing assets and tells you exactly where to patch.
Request A Demo