A flaw was found in dbus. The implementation of DBUS_COOKIE_SHA1 is susceptible to a symbolic link attack. A malicious client with write access to its own home directory could manipulate a ~/.dbus-keyrings symlink to cause the DBusServer to read and write in unintended locations resulting in an authentication bypass. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Platform | Package | Release Date | Advisory |
---|---|---|---|
Amazon Linux 1 | dbus | 2019-07-17 23:54 | ALAS-2019-1246 |
Amazon Linux 2 - Core | dbus | 2022-10-31 19:40 | ALAS2-2022-1870 |
Score Type | Score | Vector | |
---|---|---|---|
Amazon Linux | CVSSv3 | 7.0 | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
NVD | CVSSv2 | 3.6 | AV:L/AC:L/Au:N/C:P/I:P/A:N |
NVD | CVSSv3 | 7.1 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N |