Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
dbus before 1.10.28, 1.12.x before 1.12.16, and 1.13.x before 1.13.12, as used in DBusServer in Canonical Upstart in Ubuntu 14.04 (and in some, less common, uses of dbus-daemon), allows cookie spoofing because of symlink mishandling in the reference implementation of DBUS_COOKIE_SHA1 in the libdbus library. (This only affects the DBUS_COOKIE_SHA1 authentication mechanism.) A malicious client with write access to its own home directory could manipulate a ~/.dbus-keyrings symlink to cause a DBusServer with a different uid to read and write in unintended locations. In the worst case, this could result in the DBusServer reusing a cookie that is known to the malicious client, and treating that cookie as evidence that a subsequent client connection came from an attacker-chosen uid, allowing authentication bypass.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
Ubuntu dbus 后置链接漏洞
Vulnerability Description
Ubuntu是英国科能（Canonical）公司和Ubuntu公司的一套以桌面应用为主的GNU/Linux操作系统。 Ubuntu中的dbus 1.10.28之前版本，1.12.16之前的1.12.x版本和1.13.12之前的1.13.x版本存在后置链接漏洞。该漏洞源于网络系统或产品未正确过滤表示非预期资源的链接或者快捷方式的文件名。攻击者可利用该漏洞访问非法的文件路径。
CVSS Information
N/A
Vulnerability Type
N/A