CVE-2020-3155: cisco cisco jabber im for android Improper Certificate Validation
Vulnerability summary
CVE-2020-3155 is a high (CVSS 7.4) Improper Certificate Validation vulnerability in cisco cisco jabber im for android. EPSS estimates a 0.90% chance of exploitation in the next 30 days, higher than 58.8% of scored vulnerabilities.
Timeline
- 04-03-2020PublishedVulnerability first disclosed.
- 15-11-2024Last modifiedVulnerability information updated.
Description
A vulnerability in the SSL implementation of the Cisco Intelligent Proximity solution could allow an unauthenticated, remote attacker to view or alter information shared on Cisco Webex video devices and Cisco collaboration endpoints if the products meet the conditions described in the Vulnerable Products section. The vulnerability is due to a lack of validation of the SSL server certificate received when establishing a connection to a Cisco Webex video device or a Cisco collaboration endpoint. An attacker could exploit this vulnerability by using man in the middle (MITM) techniques to intercept the traffic between the affected client and an endpoint, and then using a forged certificate to impersonate the endpoint. Depending on the configuration of the endpoint, an exploit could allow the attacker to view presentation content shared on it, modify any content being presented by the victim, or have access to call controls. This vulnerability does not affect cloud registered collaboration endpoints.
CVSS metrics
4 scores · 2 sources · 3 versions- NVDNIST7.4HighCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS trend
Probability
0.90%
Chance of exploitation in the next 30 days
Percentile
59%
Versus all other CVEs
30-day change
0.00 pp
From 0.90% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Cisco4 products
1 vendor · 4 products
References
1 links- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-proximity-ssl-cert-gBBu3RBVendor AdvisoryX Refsource CISCO