Vulnerability Name:

CVE-2019-1837 (CCN-159587)

Assigned:2018-12-06
Published:2019-04-17
Updated:2019-10-09
Summary:A vulnerability in the User Data Services (UDS) API of Cisco Unified Communications Manager (Unified CM) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on the management GUI. The vulnerability is due to improper validation of input parameters in the UDS API requests. An attacker could exploit this vulnerability by sending a crafted request to the UDS API of an affected device. A successful exploit could allow the attacker to make the A Cisco DB service quit unexpectedly, preventing admin access to the Unified CM management GUI. Manual intervention may be required to restore normal operation. Software versions 10.5, 11.5, 12.0, 12.5 are affected.
CVSS v3 Severity:7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/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): None
Availibility (A): High
5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
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:N/A:L/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): None
Availibility (A): Low
CVSS v2 Severity:7.8 High (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-20
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2019-1837

Source: BID
Type: Third Party Advisory, VDB Entry
108019

Source: XF
Type: UNKNOWN
cisco-cve20191837-dos(159587)

Source: CCN
Type: Cisco Security Advisory cisco-sa-20190417-ucm-dos
Cisco Unified Communications Manager Denial of Service Vulnerability

Source: CISCO
Type: Vendor Advisory
20190417 Cisco Unified Communications Manager Denial of Service Vulnerability

Vulnerable Configuration:Configuration 1:
  • cpe:/a:cisco:unified_communications_manager:10.5(2.10000.5):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:unified_communications_manager:11.5(1.10000.6):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:unified_communications_manager:12.0(1.10000.10):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:unified_communications_manager:12.5(1.10000.22):*:*:*:*:*:*:*

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

    • * Denotes that component is vulnerable
    BACK
    cisco unified communications manager 10.5(2.10000.5)
    cisco unified communications manager 11.5(1.10000.6)
    cisco unified communications manager 12.0(1.10000.10)
    cisco unified communications manager 12.5(1.10000.22)
    cisco unified communications manager *