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CVE-2020-3336

HIGHCVSS 7.2/10EPSS 2.07%

Last modified

CVE-2020-3336 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. A vulnerability in the software upgrade process of Cisco TelePresence Collaboration Endpoint Software and Cisco RoomOS Software could allow an authenticated, remote attacker to modify the filesystem to cause a denial of service (DoS) or gain privileged access to the root filesystem. The vulnerability is due to insufficient input validation. EPSS estimates a 2.07% chance of exploitation in the next 30 days.

Description

A vulnerability in the software upgrade process of Cisco TelePresence Collaboration Endpoint Software and Cisco RoomOS Software could allow an authenticated, remote attacker to modify the filesystem to cause a denial of service (DoS) or gain privileged access to the root filesystem. The vulnerability is due to insufficient input validation. An attacker with administrative privileges could exploit this vulnerability by sending requests with malformed parameters to the system using the console, Secure Shell (SSH), or web API. A successful exploit could allow the attacker to modify the device configuration or cause a DoS.

Metrics

CVSS 3.1
7.2/10

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
2.07%

79.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CiscoRoomosAll versions
CiscoTelepresence Collaboration Endpoint< 9.9.4
CiscoTelepresence Collaboration Endpoint>= 9.10.0, <= 9.10.2
CiscoTelepresence Collaboration Endpoint>= 9.12.0, <= 9.12.3

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-3336?
A vulnerability in the software upgrade process of Cisco TelePresence Collaboration Endpoint Software and Cisco RoomOS Software could allow an authenticated, remote attacker to modify the filesystem to cause a denial of service (DoS) or gain privileged access to the root filesystem. The vulnerability is due to insufficient input validation. An attacker with administrative privileges could exploit this vulnerability by sending requests with malformed parameters to the system using the console, Secure Shell (SSH), or web API. A successful exploit could allow the attacker to modify the device configuration or cause a DoS.
How severe is CVE-2020-3336?
CVE-2020-3336 has a CVSS score of 7.2/10 (HIGH severity). The EPSS model estimates a 2.07% probability of exploitation in the next 30 days.
How do I fix CVE-2020-3336?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-3336?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST