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VAR-201912-2010

Vulnerability from variot - Updated: 2022-05-04 10:00

ZLAN5102 serial server is a protocol converter between RS232 / 485 and TCP / IP developed by Shanghai Zhuolan Information Technology Co., Ltd. The serial server can conveniently connect serial devices to Ethernet and the Internet, and realize the network upgrade of serial devices. ZLAN5103 is a new generation high-performance serial server developed by Shanghai Zhuolan based on ZLAN1003.

The ZLAN5102 and ZLAN5103 network cards have a denial of service vulnerability. Sending only three-way TCP handshake packets to port 80 of the device and no other packets will cause the device's network card to restart abnormally. An attacker could use the vulnerability to launch a denial of service attack.

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Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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VAR-201912-2010

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