PT-2020-4640 · Cisco · Cisco Webex Player+1

Francis Provencher · Published 2020-11-04 · Updated 2021-10-19 · CVE-2020-3573

Positive Technologies (AI Summary)

CVSS v2.0

9.3

High

Base vector

AV:N/AC:M/Au:N/C:C/I:C/A:C

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

Description The issue is related to insufficient validation of certain elements of a Webex recording stored in the Advanced Recording Format (ARF) or Webex Recording Format (WRF), which could allow an attacker to execute arbitrary code on an affected system. An attacker could exploit this by sending a malicious ARF or WRF file 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. The vulnerability is also described as a buffer overflow in memory, which could be exploited to execute arbitrary code.

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

Buffer Overflow

Improper Initialization

Weakness Enumeration

CWE-119

CWE-665

Related Identifiers

BDU:2020-05192

CVE-2020-3573

ZDI-20-1362

Affected Products

Cisco Webex Network Recording Player

Cisco Webex Player

References · 6

• https://zerodayinitiative.com/advisories/ZDI-20-1362 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2020-3573 · Security Note
• https://osv.dev/vulnerability/CVE-2020-3573 · Vendor Advisory
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-nbr-NOS6FQ24 · Vendor Advisory
• https://bdu.fstec.ru/vul/2020-05192 · Security Note
• https://t.me/cibsecurity/16008 · Telegram Post