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A malicious server can use the FTP PASV response to trick curl 7.73.0 and earlier into connecting back to a given IP address and port and this way potentially make curl extract information about services that are otherwise private and not disclosed for example doing port scanning and service banner extractions.

🗓️ 16 Dec 2020 08:00:00Reported by MicrosoftType 
mscve
 mscve🔗 msrc.microsoft.com👁 5 Views

Malicious FTP PASV reply can make curl 7.73.0 and earlier connect to attacker IPs and reveal private services.

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Detection
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Vulners
Node
microsoftcm1_curl_7.68.0-3Range<7.68.0-3

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16 Dec 2020 08:00Current
9.3High risk
Vulners AI Score9.3
CVSS 3.13.7
CVSS 24.3
EPSS0.03851
SSVC
ftppasvcurlprivate servicessecurity riskattackers
5