Vulnerability Name:

CVE-2017-12363 (CCN-135591)

Assigned:2017-11-29
Published:2017-11-29
Updated:2019-10-09
Summary:A vulnerability in Cisco WebEx Meeting Server could allow an unauthenticated, remote attacker to modify the welcome message of a meeting on an affected system. The vulnerability is due to insufficient security settings on meetings. An attacker could exploit this vulnerability by modifying the welcome message to a meeting. A successful exploit could allow the attacker to modify the welcome message of any known meeting. Cisco Bug IDs: CSCvf68695.
CVSS v3 Severity:5.3 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
4.6 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): Low
Availibility (A): None
5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
4.6 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): Low
Availibility (A): None
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-668
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2017-12363

Source: BID
Type: Third Party Advisory, VDB Entry
102000

Source: CCN
Type: BID-102000
Cisco WebEx Meetings Server CVE-2017-12363 Remote Security Bypass Vulnerability

Source: SECTRACK
Type: Third Party Advisory, VDB Entry
1039921

Source: XF
Type: UNKNOWN
cisco-cve201712363-weak-security(135591)

Source: CCN
Type: Cisco Security Advisory cisco-sa-20171129-webex3
Cisco WebEx Meeting Server Unauthorized Welcome Message Modification Vulnerability

Source: CONFIRM
Type: Vendor Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171129-webex3

Vulnerable Configuration:Configuration 1:
  • cpe:/a:cisco:webex_meetings_server:2.6.0.8:*:*:*:*:*:*:*
  • OR cpe:/a:cisco:webex_meetings_server:2.7:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:cisco:webex_meeting_server:*:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    cisco webex meetings server 2.6.0.8
    cisco webex meetings server 2.7
    cisco webex meeting server *