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| author | bdrewery <bdrewery@FreeBSD.org> | 2016-03-12 06:50:09 +0800 |
|---|---|---|
| committer | bdrewery <bdrewery@FreeBSD.org> | 2016-03-12 06:50:09 +0800 |
| commit | 7583a02a47a99b03c79475272e6517c7a7055f27 (patch) | |
| tree | 19affc02a5d5d2c3c74635ef851b7258bb63591f /security | |
| parent | 9442c8297132df629a1a8762d6b35a8204433a63 (diff) | |
| download | freebsd-ports-gnome-7583a02a47a99b03c79475272e6517c7a7055f27.tar.gz freebsd-ports-gnome-7583a02a47a99b03c79475272e6517c7a7055f27.tar.zst freebsd-ports-gnome-7583a02a47a99b03c79475272e6517c7a7055f27.zip | |
Document OpenSSH 7.2p2 fix for X11Forwarding command injection
Diffstat (limited to 'security')
| -rw-r--r-- | security/vuxml/vuln.xml | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/security/vuxml/vuln.xml b/security/vuxml/vuln.xml index 286fc735c0ab..9f9e24e672ac 100644 --- a/security/vuxml/vuln.xml +++ b/security/vuxml/vuln.xml @@ -58,6 +58,47 @@ Notes: * Do not forget port variants (linux-f10-libxml2, libxml2, etc.) --> <vuxml xmlns="http://www.vuxml.org/apps/vuxml-1"> + <vuln vid="e4644df8-e7da-11e5-829d-c80aa9043978"> + <topic>openssh -- command injection when X11Forwarding is enabled</topic> + <affects> + <package> + <name>openssh-portable</name> + <range><lt>7.2.p2,1</lt></range> + </package> + </affects> + <description> + <body xmlns="http://www.w3.org/1999/xhtml"> + <p>The OpenSSH project reports:</p> + <blockquote cite="http://www.openssh.com/txt/x11fwd.adv"> + <p>Missing sanitisation of untrusted input allows an + authenticated user who is able to request X11 forwarding + to inject commands to xauth(1). + </p> + <p>Injection of xauth commands grants the ability to read + arbitrary files under the authenticated user's privilege, + Other xauth commands allow limited information leakage, + file overwrite, port probing and generally expose xauth(1), + which was not written with a hostile user in mind, as an + attack surface. + </p> + <p>Mitigation:</p> + <p>Set X11Forwarding=no in sshd_config. This is the default.</p> + <p>For authorized_keys that specify a "command" restriction, + also set the "restrict" (available in OpenSSH >=7.2) or + "no-x11-forwarding" restrictions. + </p> + </blockquote> + </body> + </description> + <references> + <url>http://www.openssh.com/txt/x11fwd.adv</url> + </references> + <dates> + <discovery>2016-03-11</discovery> + <entry>2016-03-11</entry> + </dates> + </vuln> + <vuln vid="70c44cd0-e717-11e5-85be-14dae9d210b8"> <topic>quagga -- stack based buffer overflow vulnerability</topic> <affects> |