CVE-2019-15987

26.11.2019, 04:15

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.

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	NIST	5.3 MEDIUM	NETWORK	LOW	NONE	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
cisco	CNA	5.3 MEDIUM	NETWORK	LOW	NONE	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVE	ADP	---				---
CISA-ADP	ADP	---				---

Base Score

CVSS 3.x

EPSS Score

Percentile: 74%

Vendor	Product	Version
cisco	webex_meetings_online	11.0.0
cisco	webex_meetings_server	4.0
cisco	webex_event_center	-
cisco	webex_meeting_center	-
cisco	webex_support_center	-
cisco	webex_training_center	-

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= Vulnerable software versions

Common Weakness Enumeration

CWE-287 - Improper Authentication
When an actor claims to have a given identity, the software does not prove or insufficiently proves that the claim is correct.

References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191120-webex-centers-infodis