National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2019-18790 Detail

Current Description

An issue was discovered in channels/chan_sip.c in Sangoma Asterisk 13.x, 16.x, and 17.x, and Certified Asterisk 13.21, because of an incomplete fix for CVE-2019-18351. A SIP request can be sent to Asterisk that can change a SIP peer's IP address. A REGISTER does not need to occur, and calls can be hijacked as a result. The only thing that needs to be known is the peer's name; authentication details such as passwords do not need to be known. This vulnerability is only exploitable when the nat option is set to the default, or auto_force_rport.

Source:  MITRE
View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score: 6.5 MEDIUM
Vector:  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to nvd@nist.gov.

Hyperlink Resource
http://downloads.asterisk.org/pub/security/AST-2019-006.html Patch Vendor Advisory
https://lists.debian.org/debian-lts-announce/2019/11/msg00038.html Mailing List Third Party Advisory
https://www.asterisk.org/downloads/security-advisories Vendor Advisory

Weakness Enumeration

CWE-ID CWE Name Source
CWE-862 Missing Authorization NIST  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
13.0.0
Up to (excluding)
13.29.2
 cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
16.0.0
Up to (excluding)
16.6.2
 cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
17.0.0
Up to (excluding)
17.0.1
 cpe:2.3:a:digium:certified_asterisk:13.21.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:digium:certified_asterisk:13.21.0:cert1:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:digium:certified_asterisk:13.21.0:cert2:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:digium:certified_asterisk:13.21.0:cert3:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:digium:certified_asterisk:13.21.0:cert4:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:digium:certified_asterisk:13.21.0:rc1:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 2 ( hide )
 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-18790
NVD Published Date:
11/22/2019
NVD Last Modified:
12/04/2019