Advisories

Report One MyReport Updater through 2.1.1 Unauthenticated gRPC Service RCE

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Severity
critical
Date
Affecting
  • MyReport Updater <= 2.1.1

CWE
  • CWE-306 Missing Authentication for Critical Function
CVSS
9.2
CVSS V4 Vector
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Credit
Lucas Laise of Quarkslab
Description
Report One MyReport Updater through 2.1.1 exposes an unauthenticated gRPC service on TCP port 9095 that allows remote attackers to redirect the SYSTEM updater by invoking the UpdateConfigReferent method. Attackers can point the updater to a malicious reference server serving modified module archives with matching MD5 digests to write files and execute code as SYSTEM.

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