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CVE-2020-3361

CRITICALCVSS 9.8/10EPSS 2.36%

Last modified

CVE-2020-3361 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. A vulnerability in Cisco Webex Meetings and Cisco Webex Meetings Server could allow an unauthenticated, remote attacker to gain unauthorized access to a vulnerable Webex site. The vulnerability is due to improper handling of authentication tokens by a vulnerable Webex site. EPSS estimates a 2.36% chance of exploitation in the next 30 days.

Description

A vulnerability in Cisco Webex Meetings and Cisco Webex Meetings Server could allow an unauthenticated, remote attacker to gain unauthorized access to a vulnerable Webex site. The vulnerability is due to improper handling of authentication tokens by a vulnerable Webex site. An attacker could exploit this vulnerability by sending crafted requests to a vulnerable Cisco Webex Meetings or Cisco Webex Meetings Server site. If successful, the attacker could gain the privileges of another user within the affected Webex site.

Metrics

CVSS 3.1
9.8/10

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

EPSS Probability
2.36%

81.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CiscoWebex Meetings<= 39.5.25
CiscoWebex Meetings>= 40.1.0, <= 40.4.10
CiscoWebex Meetings40.6.0
CiscoWebex Meetings Server< 4.0
CiscoWebex Meetings Server4.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-3361?
A vulnerability in Cisco Webex Meetings and Cisco Webex Meetings Server could allow an unauthenticated, remote attacker to gain unauthorized access to a vulnerable Webex site. The vulnerability is due to improper handling of authentication tokens by a vulnerable Webex site. An attacker could exploit this vulnerability by sending crafted requests to a vulnerable Cisco Webex Meetings or Cisco Webex Meetings Server site. If successful, the attacker could gain the privileges of another user within the affected Webex site.
How severe is CVE-2020-3361?
CVE-2020-3361 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.36% probability of exploitation in the next 30 days.
How do I fix CVE-2020-3361?
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-2020-3361?

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

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Source: NVD / NIST