Advisories

FreeRDP before 3.32.2 Unauthenticated Denial of Service via CredSSP TSRequest

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Severity
high
Date
Affecting
  • FreeRDP >= 0, < 3.32.2

CWE
  • CWE-617 Reachable Assertion
CVSS
8.7
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Credit
Kushalkhemka, mayank-jangid-moon, opensec-intelligence
Description
FreeRDP before 3.32.2 contains a denial of service vulnerability in the NLA-enabled shadow server when a CredSSP TSRequest omits negoTokens. Unauthenticated attackers can send a crafted seven-byte TSRequest containing only the version field to trigger a fatal WINPR_ASSERT and abort the server process.

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