CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
LOW
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:L
AI Score
Confidence
High
EPSS
Percentile
24.1%
Blueman is a GTK+ Bluetooth Manager. In Blueman before 2.1.4, the DhcpClient method of the D-Bus interface to blueman-mechanism is prone to an argument injection vulnerability. The impact highly depends on the system configuration. If Polkit-1 is disabled and for versions lower than 2.0.6, any local user can possibly exploit this. If Polkit-1 is enabled for version 2.0.6 and later, a possible attacker needs to be allowed to use the org.blueman.dhcp.client
action. That is limited to users in the wheel group in the shipped rules file that do have the privileges anyway. On systems with ISC DHCP client (dhclient), attackers can pass arguments to ip link
with the interface name that can e.g. be used to bring down an interface or add an arbitrary XDP/BPF program. On systems with dhcpcd and without ISC DHCP client, attackers can even run arbitrary scripts by passing -c/path/to/script
as an interface name. Patches are included in 2.1.4 and master that change the DhcpClient D-Bus method(s) to accept BlueZ network object paths instead of network interface names. A backport to 2.0(.8) is also available. As a workaround, make sure that Polkit-1-support is enabled and limit privileges for the org.blueman.dhcp.client
action to users that are able to run arbitrary commands as root anyway in /usr/share/polkit-1/rules.d/blueman.rules.
Vendor | Product | Version | CPE |
---|---|---|---|
blueman_project | blueman | * | cpe:2.3:a:blueman_project:blueman:*:*:*:*:*:*:*:* |
debian | debian_linux | 9.0 | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
debian | debian_linux | 10.0 | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
fedoraproject | fedora | 31 | cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* |
fedoraproject | fedora | 32 | cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* |
fedoraproject | fedora | 33 | cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* |
[
{
"product": "blueman",
"vendor": "blueman-project",
"versions": [
{
"status": "affected",
"version": "< 2.1.4"
}
]
}
]
packetstormsecurity.com/files/159740/Blueman-Local-Root-Privilege-Escalation.html
bugs.launchpad.net/ubuntu/+source/blueman/+bug/1897287
github.com/blueman-project/blueman/releases/tag/2.1.4
github.com/blueman-project/blueman/security/advisories/GHSA-jpc9-mgw6-2xwx
lists.debian.org/debian-lts-announce/2020/11/msg00005.html
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3F4EQU6CAPBKAPJ42HTB473NJLXFKB32/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6CFLMNHAHX5HPIKC5IG6F25HO5Z6RH2N/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W52NP7HRFTNAVNZLGKY4GR3JIZG5KKGS/
security.gentoo.org/glsa/202011-11
www.debian.org/security/2020/dsa-4781
CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
LOW
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:L
AI Score
Confidence
High
EPSS
Percentile
24.1%