FreeSWITCH < 1.4.26 / 1.6.x < 1.6.5 JSON Parser RCE
High Nessus Plugin ID 88696
SynopsisThe remote FreeSWITCH server is affected by a remote code execution vulnerability.
DescriptionThe 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.
SolutionUpgrade to FreeSWITCH version 1.4.26 / 1.6.5 or later.