FreeSWITCH < 1.4.26 / 1.6.x < 1.6.5 JSON Parser RCE

This script is Copyright (C) 2016-2017 Tenable Network Security, Inc.

Synopsis :

The remote FreeSWITCH server is affected by a remote code execution

Description :

The remote FreeSWITCH server is prior to version 1.4.26 or 1.6.x prior
to 1.6.5. It is, therefore, affected by a remote code execution
vulnerability due to improper validation of user-supplied input to the
parse_string() function in esl_json.c, switch_json.c, and ks_json.c. A
remote attacker can exploit this, via a crafted JSON message, to cause
a heap-based buffer overflow condition, resulting in a denial of
service or the execution of arbitrary code.

See also :

Solution :

Upgrade to FreeSWITCH version 1.4.26 / 1.6.5 or later.

Risk factor :

High / CVSS Base Score : 7.5
CVSS Temporal Score : 5.5
Public Exploit Available : false

Family: Misc.

Nessus Plugin ID: 88696 ()

Bugtraq ID: 76976

CVE ID: CVE-2015-7392

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