National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2019-1922 Detail

Current Description

A vulnerability in Cisco SIP IP Phone Software for Cisco IP Phone 7800 Series and 8800 Series could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected phone. The vulnerability is due to insufficient validation of input Session Initiation Protocol (SIP) packets. An attacker could exploit this vulnerability by altering the SIP replies that are sent to the affected phone during the registration process. A successful exploit could allow the attacker to cause the phone to reboot and not complete the registration process.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.5 HIGH
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H (V3 legend)
Impact Score: 3.6
Exploitability Score: 3.9


Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 7.8 HIGH
Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:C) (V2 legend)
Impact Subscore: 6.9
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Complete
Additional Information:
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190703-ip-phone-sip-dos Vendor Advisory

Technical Details

Vulnerability Type (View All)

  • NULL Pointer Dereference (CWE-476)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:o:cisco:ip_conference_phone_7832_firmware:-:*:*:*:*:*:*:*
     Show Matching CPE(s)
Running on/with
 cpe:2.3:h:cisco:ip_conference_phone_7832:-:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 2 ( hide )
 cpe:2.3:o:cisco:ip_conference_phone_8832_firmware:11.5\(1\):*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:cisco:ip_conference_phone_8832_firmware:12.5\(1\):*:*:*:*:*:*:*
     Show Matching CPE(s)
Running on/with
 cpe:2.3:h:cisco:ip_conference_phone_8832:-:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 3 ( hide )
 cpe:2.3:o:cisco:ip_phone_7811_firmware:-:*:*:*:*:*:*:*
     Show Matching CPE(s)
Running on/with
 cpe:2.3:h:cisco:ip_phone_7811:-:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 4 ( hide )
 cpe:2.3:o:cisco:ip_phone_7821_firmware:-:*:*:*:*:*:*:*
     Show Matching CPE(s)
Running on/with
 cpe:2.3:h:cisco:ip_phone_7821:-:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 5 ( hide )
 cpe:2.3:o:cisco:ip_phone_7841_firmware:-:*:*:*:*:*:*:*
     Show Matching CPE(s)
Running on/with
 cpe:2.3:h:cisco:ip_phone_7841:-:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 6 ( hide )
 cpe:2.3:o:cisco:ip_phone_7861_firmware:-:*:*:*:*:*:*:*
     Show Matching CPE(s)
Running on/with
 cpe:2.3:h:cisco:ip_phone_7861:-:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 7 ( hide )
 cpe:2.3:o:cisco:ip_phone_8811_firmware:11.5\(1\):*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:cisco:ip_phone_8811_firmware:12.5\(1\):*:*:*:*:*:*:*
     Show Matching CPE(s)
Running on/with
 cpe:2.3:h:cisco:ip_phone_8811:-:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 8 ( hide )
 cpe:2.3:o:cisco:ip_phone_8841_firmware:11.5\(1\):*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:cisco:ip_phone_8841_firmware:12.5\(1\):*:*:*:*:*:*:*
     Show Matching CPE(s)
Running on/with
 cpe:2.3:h:cisco:ip_phone_8841:-:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 9 ( hide )
 cpe:2.3:o:cisco:ip_phone_8845_firmware:11.5\(1\):*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:cisco:ip_phone_8845_firmware:12.5\(1\):*:*:*:*:*:*:*
     Show Matching CPE(s)
Running on/with
 cpe:2.3:h:cisco:ip_phone_8845:-:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 10 ( hide )
 cpe:2.3:o:cisco:ip_phone_8851_firmware:11.5\(1\):*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:cisco:ip_phone_8851_firmware:12.5\(1\):*:*:*:*:*:*:*
     Show Matching CPE(s)
Running on/with
 cpe:2.3:h:cisco:ip_phone_8851:-:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 11 ( hide )
 cpe:2.3:o:cisco:ip_phone_8861_firmware:11.5\(1\):*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:cisco:ip_phone_8861_firmware:12.5\(1\):*:*:*:*:*:*:*
     Show Matching CPE(s)
Running on/with
 cpe:2.3:h:cisco:ip_phone_8861:-:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 12 ( hide )
 cpe:2.3:o:cisco:ip_phone_8865_firmware:11.5\(1\):*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:cisco:ip_phone_8865_firmware:12.5\(1\):*:*:*:*:*:*:*
     Show Matching CPE(s)
Running on/with
 cpe:2.3:h:cisco:ip_phone_8865:-:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

1 change record found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-1922
NVD Published Date:
07/05/2019
NVD Last Modified:
07/17/2019