PT-2021-5092 · Cisco · Cisco Webex Player

Kushal Arvind Shah · Published 2021-06-02 · Updated 2021-06-21 · CVE-2021-1526

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Cisco Webex Player for Windows and MacOS (affected versions not specified)

Description The issue is related to insufficient validation of values in Webex recording files that are in Webex Recording Format (WRF). An attacker could exploit this by sending a malicious WRF file to a user through a link or email attachment and persuading the user to open the file with the affected software. A successful exploit could allow the attacker to execute arbitrary code on the affected system with the privileges of the targeted user.

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

Buffer Overflow

Memory Corruption

Weakness Enumeration

CWE-119

CWE-787

Related Identifiers

BDU:2021-05874

CVE-2021-1526

Affected Products

Cisco Webex Player

References · 6

• https://osv.dev/vulnerability/CVE-2021-1526 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-05874 · Security Note
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-player-kOf8zVT · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-1526 · Security Note
• https://cybersecurity-help.cz/vdb/SB2021060214 · Note
• https://fortiguard.com/zeroday/FG-VD-21-042 · Note