Vulnerability Name:

CVE-2020-3603 (CCN-191152)

Assigned:2019-12-12
Published:2020-11-04
Updated:2021-10-19
Summary:Multiple vulnerabilities in Cisco Webex Network Recording Player for Windows and Cisco Webex Player for Windows could allow an attacker to execute arbitrary code on an affected system. The vulnerabilities are due to insufficient validation of certain elements of a Webex recording that is stored in the Advanced Recording Format (ARF) or Webex Recording Format (WRF). An attacker could exploit these vulnerabilities by sending a user a malicious ARF or WRF file through a link or email attachment and persuading the user to open the file with the affected software on the local system. A successful exploit could allow the attacker to execute arbitrary code on the affected system with the privileges of the targeted user.
CVSS v3 Severity:7.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
6.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
7.8 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
6.8 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:9.3 High (CVSS v2 Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
6.8 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-787
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2020-3603

Source: XF
Type: UNKNOWN
cisco-cve20203603-code-exec(191152)

Source: CCN
Type: Cisco Security Advisory cisco-sa-webex-nbr-NOS6FQ24
Cisco Webex Network Recording Player and Cisco Webex Player Arbitrary Code Execution Vulnerabilities

Source: CISCO
Type: Vendor Advisory
20201104 Cisco Webex Network Recording Player and Cisco Webex Player Arbitrary Code Execution Vulnerabilities

Source: CCN
Type: ZDI-20-1361
Cisco WebEx Network Recording Player ARF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability

Source: MISC
Type: Third Party Advisory, VDB Entry
https://www.zerodayinitiative.com/advisories/ZDI-20-1361/

Vulnerable Configuration:Configuration 1:
  • cpe:/a:cisco:webex_meetings:*:*:*:*:*:*:*:* (Version < 40.6.11)
  • OR cpe:/a:cisco:webex_meetings:*:*:*:*:*:*:*:* (Version >= 40.7.0 and < 40.8.0)
  • OR cpe:/a:cisco:webex_meetings_server:3.0:-:*:*:*:*:*:*
  • OR cpe:/a:cisco:webex_meetings_server:3.0:maintenance_release1:*:*:*:*:*:*
  • OR cpe:/a:cisco:webex_meetings_server:3.0:maintenance_release2:*:*:*:*:*:*
  • OR cpe:/a:cisco:webex_meetings_server:3.0:maintenance_release3:-:*:*:*:*:*
  • OR cpe:/a:cisco:webex_meetings_server:4.0:-:*:*:*:*:*:*
  • OR cpe:/a:cisco:webex_meetings_server:4.0:maintenance_release1:*:*:*:*:*:*
  • OR cpe:/a:cisco:webex_meetings_server:4.0:maintenance_release2:*:*:*:*:*:*
  • OR cpe:/a:cisco:webex_meetings_server:4.0:maintenance_release3:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:cisco:webex_network_recording_player:-:*:*:*:*:*:*:*
  • OR cpe:/a:cisco:webex_player:*:*:*:*:*:windows:*:*

    • * Denotes that component is vulnerable
    BACK
    cisco webex meetings *
    cisco webex meetings *
    cisco webex meetings server 3.0 -
    cisco webex meetings server 3.0 maintenance_release1
    cisco webex meetings server 3.0 maintenance_release2
    cisco webex meetings server 3.0 maintenance_release3
    cisco webex meetings server 4.0 -
    cisco webex meetings server 4.0 maintenance_release1
    cisco webex meetings server 4.0 maintenance_release2
    cisco webex meetings server 4.0 maintenance_release3
    cisco webex network recording player -
    cisco webex player *