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CiscoCVE-2019-1887

HistoryJul 06, 2019 - 2:15 a.m.

CVE-2019-1887

2019-07-0602:15:11

CWE-787

cisco

web.nvd.nist.gov

446

cisco

unified communications

sip

protocol

vulnerability

cve-2019-1887

nvd

dos

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS3

8.6

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

AI Score

7.4

Confidence

High

EPSS

0.002

Percentile

61.0%

JSON

A vulnerability in the Session Initiation Protocol (SIP) protocol implementation of Cisco Unified Communications Manager could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to insufficient validation of input SIP traffic. An attacker could exploit this vulnerability by sending a malformed SIP packet to an affected Cisco Unified Communications Manager. A successful exploit could allow the attacker to trigger a new registration process on all connected phones, temporarily disrupting service.

Affected configurations

Nvd

Node

ciscounified_communications_managerMatch10.5\(2.10000.5\)

ciscounified_communications_managerMatch11.5\(1.10000.6\)

ciscounified_communications_managerMatch12.0\(1.10000.10\)

ciscounified_communications_managerMatch12.5\(1.10000.22\)

VendorProductVersionCPE
ciscounified_communications_manager10.5(2.10000.5)cpe:2.3:a:cisco:unified_communications_manager:10.5\(2.10000.5\):*:*:*:*:*:*:*
ciscounified_communications_manager11.5(1.10000.6)cpe:2.3:a:cisco:unified_communications_manager:11.5\(1.10000.6\):*:*:*:*:*:*:*
ciscounified_communications_manager12.0(1.10000.10)cpe:2.3:a:cisco:unified_communications_manager:12.0\(1.10000.10\):*:*:*:*:*:*:*
ciscounified_communications_manager12.5(1.10000.22)cpe:2.3:a:cisco:unified_communications_manager:12.5\(1.10000.22\):*:*:*:*:*:*:*

Vendor	Product	Version	CPE
cisco	unified_communications_manager	10.5(2.10000.5)	cpe:2.3:a:cisco:unified_communications_manager:10.5\(2.10000.5\):::::::*
cisco	unified_communications_manager	11.5(1.10000.6)	cpe:2.3:a:cisco:unified_communications_manager:11.5\(1.10000.6\):::::::*
cisco	unified_communications_manager	12.0(1.10000.10)	cpe:2.3:a:cisco:unified_communications_manager:12.0\(1.10000.10\):::::::*
cisco	unified_communications_manager	12.5(1.10000.22)	cpe:2.3:a:cisco:unified_communications_manager:12.5\(1.10000.22\):::::::*

CNA Affected

[
  {
    "product": "Cisco Unified Communications Manager",
    "vendor": "Cisco",
    "versions": [
      {
        "lessThan": "12.0(1)SU3",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]

References

tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190703-cucm-dos

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS3

8.6

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

AI Score

7.4

Confidence

High

EPSS

0.002

Percentile

61.0%

JSON

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