Vulnerability Monitor

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CVE-2019-18790

An issue was discovered in channels/chan_sip.c in Sangoma Asterisk 13.x before 13.29.2, 16.x before 16.6.2, and 17.x before 17.0.1, and Certified Asterisk 13.21 before cert5. 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.

Published

2019-11-22T17:15:11.740

Last Modified

2024-11-21T04:33:34.090

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 6.5 (MEDIUM)

CVSSv2 Vector

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

  • Access Vector: NETWORK
  • Access Complexity: MEDIUM
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: PARTIAL
  • Availability Impact: NONE
Exploitability Score

8.6

Impact Score

4.9

Weaknesses
  • Type: Primary
    CWE-862
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application digium asterisk < 13.29.2 Yes
Application digium asterisk < 16.6.2 Yes
Application digium asterisk < 17.0.1 Yes
Application digium certified_asterisk 13.21.0 Yes
Application digium certified_asterisk 13.21.0 Yes
Application digium certified_asterisk 13.21.0 Yes
Application digium certified_asterisk 13.21.0 Yes
Application digium certified_asterisk 13.21.0 Yes
Application digium certified_asterisk 13.21.0 Yes
Operating System debian debian_linux 8.0 Yes
Operating System debian debian_linux 9.0 Yes
References