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Advisories

Netcore NR256CN through 1.5.140116 Unauthenticated Write to Fixed Boa Staging Files

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Severity
medium
Date
Affecting

  • NR256CN <= 1.5.140116

CWE
  • CWE-306 Missing Authentication for Critical Function
CVSS
6.9
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
Credit
Zhou Ao, Yin Luxing, Lu Fangzhou, Liu Xin
Description
Netcore NR256CN through 1.5.140116 contains an unauthenticated file write vulnerability in the Boa-derived /bin/boa web server that allows remote attackers to overwrite update and restore staging files. Attackers can POST to a non-existent .cgi pathname to write attacker-controlled content into /tmp/boa_temp.update or /tmp/boa_temp.para, tampering with pending firmware updates or configuration restores or causing denial of service.

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