GLSA-200703-19 : LTSP: Authentication bypass in included LibVNCServer code
High Nessus Plugin ID 24868
SynopsisThe remote Gentoo host is missing one or more security-related patches.
DescriptionThe remote host is affected by the vulnerability described in GLSA-200703-19 (LTSP: Authentication bypass in included LibVNCServer code)
The LTSP server includes vulnerable LibVNCServer code, which fails to properly validate protocol types effectively letting users decide what protocol to use, such as 'Type 1 - None' (GLSA-200608-05). The LTSP VNC server will accept this security type, even if it is not offered by the server.
An attacker could exploit this vulnerability to gain unauthorized access with the privileges of the user running the VNC server.
There is no known workaround at this time.
SolutionAll LTSP users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=net-misc/ltsp-4.2-r1'