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CVE-2019-15987

MEDIUMCVSS 5.3/10EPSS 1.58%

Last modified

CVE-2019-15987 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. A vulnerability in web interface of the Cisco Webex Event Center, Cisco Webex Meeting Center, Cisco Webex Support Center, and Cisco Webex Training Center could allow an unauthenticated, remote attacker to guess account usernames. The vulnerability is due to missing CAPTCHA protection in certain URLs. EPSS estimates a 1.58% chance of exploitation in the next 30 days.

Description

A vulnerability in web interface of the Cisco Webex Event Center, Cisco Webex Meeting Center, Cisco Webex Support Center, and Cisco Webex Training Center could allow an unauthenticated, remote attacker to guess account usernames. The vulnerability is due to missing CAPTCHA protection in certain URLs. An attacker could exploit this vulnerability by sending a crafted request to the web interface. A successful exploit could allow the attacker to know if a given username is valid and find the real name of the user.

Metrics

CVSS 3.1
5.3/10

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

EPSS Probability
1.58%

72.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CiscoWebex Meetings Online11.0.0
CiscoWebex Meetings Server4.0
CiscoWebex Event CenterAll versions
CiscoWebex Meeting CenterAll versions
CiscoWebex Support CenterAll versions
CiscoWebex Training CenterAll versions

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2019-15987?
A vulnerability in web interface of the Cisco Webex Event Center, Cisco Webex Meeting Center, Cisco Webex Support Center, and Cisco Webex Training Center could allow an unauthenticated, remote attacker to guess account usernames. The vulnerability is due to missing CAPTCHA protection in certain URLs. An attacker could exploit this vulnerability by sending a crafted request to the web interface. A successful exploit could allow the attacker to know if a given username is valid and find the real name of the user.
How severe is CVE-2019-15987?
CVE-2019-15987 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 1.58% probability of exploitation in the next 30 days.
How do I fix CVE-2019-15987?
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-2019-15987?

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

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Source: NVD / NIST