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CVE-2019-12749
Detail
Modified
This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.
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.
NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.
Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.
NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.
Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.
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OR
*cpe:2.3:a:freedesktop:dbus:*:*:*:*:*:*:*:* versions up to (excluding) 1.10.28
*cpe:2.3:a:freedesktop:dbus:*:*:*:*:*:*:*:* versions from (including) 1.12.0 up to (excluding) 1.12.16
*cpe:2.3:a:freedesktop:dbus:*:*:*:*:*:*:*:* versions from (including) 1.13.0 up to (excluding) 1.13.12
Added
CPE Configuration
OR
*cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
*cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
*cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
*cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*
Added
CVSS V2
(AV:L/AC:L/Au:N/C:P/I:P/A:N)
Added
CVSS V3
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Added
CWE
CWE-287
Changed
Reference Type
http://www.openwall.com/lists/oss-security/2019/06/11/2 No Types Assigned
http://www.openwall.com/lists/oss-security/2019/06/11/2 Mailing List, Mitigation, Third Party Advisory
Changed
Reference Type
https://usn.ubuntu.com/4015-1/ No Types Assigned
https://usn.ubuntu.com/4015-1/ Third Party Advisory
Changed
Reference Type
https://www.openwall.com/lists/oss-security/2019/06/11/2 No Types Assigned
https://www.openwall.com/lists/oss-security/2019/06/11/2 Mailing List, Third Party Advisory
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