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WS_FTP Server Remote Command Execution (CVE-2023-40044)



Application Details

A Progress Software WS_FTP Server is used to store, share and transfer information between systems, applications, groups and individuals.


Vulnerability

Progress Software WS_FTP Server could allow a remote attacker to execute arbitrary commands on the system, caused by the unsafe deserialization of data by the Ad Hoc Transfer module.


Identification

By sending a specially crafted request, an attacker could exploit this vulnerability to execute arbitrary commands on the system.


POST /AHT/AhtApiService.asmx/AuthUser

PAYLOAD -
::AHT_DEFAULT_UPLOAD_PARAMETER::AAEAAAD/////AQAAAAAAAAAMAgAAAElTeXN0ZW0sIFZlcnNpb249NC4wLjAuMCwgQ3VsdHVyZT1uZXV0cmFsLCBQdWJsaWNLZXlUb2tlbj1iNzdhNWM1NjE5MzRlMDg5BQEAAACEAVN5c3RlbS5Db2xsZWN0aW9ucy5HZW5lcmljLlNvcnRlZFNldGAxW1tTeXN0ZW0uU3RyaW5nLCBtc2NvcmxpYiwgVmVyc2lvbj00LjAuMC4wLCBDdWx0
[snipped]

Detection

By turning this into a traffic file and matching rule, we are able to detect attempts to execute arbitrary commands on the system.


Coverage

Idappcom have created signature 8024263 along with a traffic file for this vulnerability.


References


Traffic IQ

If you are concerned that your business may be at risk of this vulnerability or others why not try out our Traffic IQ software which can scan your defences and report any issues. Learn more here: https://www.idappcom.co.uk/traffic-iq-professional

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