PT-2021-5336 · Cisco · Cisco Webex Meetings

Prasenjit Kanti Paul · Published 2021-11-03 · Updated 2022-08-05 · CVE-2021-40128

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Cisco Webex Meetings (affected versions not specified)

Description A vulnerability in the account activation feature of Cisco Webex Meetings could allow an unauthenticated, remote attacker to send an account activation email with an activation link that points to an arbitrary domain. This is due to insufficient validation of user-supplied parameters, such as user-supplied parameters. An attacker could exploit this vulnerability by sending a crafted HTTP request to the "account activation page" of Cisco Webex Meetings. A successful exploit could allow the attacker to send to any recipient an account activation email that contains a tampered activation link, which could direct the user to an attacker-controlled website.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

RCE

Weakness Enumeration

CWE-183

CWE-20

Related Identifiers

BDU:2021-06164

CVE-2021-40128

Affected Products

Cisco Webex Meetings

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2021-40128 · Security Note
• https://bdu.fstec.ru/vul/2021-06164 · Security Note
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-activation-3sdNFxcy · Vendor Advisory
• https://t.me/cibsecurity/31838 · Telegram Post