CVE-2017-2625medium
New! CVE Severity Now Using CVSS v3
The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.
Description
It was discovered that libXdmcp before 1.1.2 including used weak entropy to generate session keys. On a multi-user system using xdmcp, a local attacker could potentially use information available from the process list to brute force the key, allowing them to hijack other users' sessions.
References
http://www.securityfocus.com/bid/96480
http://www.securitytracker.com/id/1037919
https://access.redhat.com/errata/RHSA-2017:1865
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2625
https://cgit.freedesktop.org/xorg/lib/libXdmcp/commit/?id=0554324ec6bbc2071f5d1f8ad211a1643e29eb1f
Details
Source: MITRE
Published: 2018-07-27
Updated: 2019-10-09
Type: CWE-320
Risk Information
CVSS v2
Base Score: 2.1
Vector: AV:L/AC:L/Au:N/C:P/I:N/A:N
Impact Score: 2.9
Exploitability Score: 3.9
Severity: LOW
CVSS v3
Base Score: 5.5
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Impact Score: 3.6
Exploitability Score: 1.8
Severity: MEDIUM
Vulnerable Software
Configuration 1
OR
Configuration 2
OR
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.4:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
Tenable Plugins
| ID | Name | Product | Family | Severity |
|---|---|---|---|---|
| 140982 | EulerOS Virtualization for ARM 64 3.0.6.0 : libXdmcp (EulerOS-SA-2020-2034) | Nessus | Huawei Local Security Checks | medium |
| 131291 | Debian DLA-2006-1 : libxdmcp security update | Nessus | Debian Local Security Checks | medium |
| 122987 | FreeBSD : libXdmcp -- insufficient entropy generating session keys (1b6a10e9-4b7b-11e9-9e89-54e1ad3d6335) | Nessus | FreeBSD Local Security Checks | medium |
| 106579 | SUSE SLED12 / SLES12 Security Update : libXdmcp (SUSE-SU-2018:0338-1) | Nessus | SuSE Local Security Checks | medium |
| 103070 | EulerOS 2.0 SP2 : libXpm, libXdmcp, libICE (EulerOS-SA-2017-1212) | Nessus | Huawei Local Security Checks | critical |
| 103069 | EulerOS 2.0 SP1 : libXpm, libXdmcp, libICE (EulerOS-SA-2017-1211) | Nessus | Huawei Local Security Checks | critical |
| 102740 | CentOS 7 : libICE / libX11 / libXaw / libXcursor / libXdmcp / libXfixes / libXfont / libXfont2 / etc (CESA-2017:1865) | Nessus | CentOS Local Security Checks | critical |
| 102636 | Scientific Linux Security Update : X.org X11 libraries on SL7.x x86_64 (20170801) | Nessus | Scientific Linux Local Security Checks | critical |
| 102340 | Oracle Linux 7 : X.org / X11 / libraries (ELSA-2017-1865) | Nessus | Oracle Linux Local Security Checks | critical |
| 102147 | RHEL 7 : X.org X11 libraries (RHSA-2017:1865) | Nessus | Red Hat Local Security Checks | critical |
| 101767 | SUSE SLES11 Security Update : xorg-x11-libXdmcp (SUSE-SU-2017:1868-1) | Nessus | SuSE Local Security Checks | medium |
| 101766 | SUSE SLED12 / SLES12 Security Update : libXdmcp (SUSE-SU-2017:1862-1) | Nessus | SuSE Local Security Checks | medium |
| 101569 | Fedora 26 : libXdmcp (2017-09f65e5e00) | Nessus | Fedora Local Security Checks | medium |
| 101286 | openSUSE Security Update : libXdmcp (openSUSE-2017-789) | Nessus | SuSE Local Security Checks | medium |
| 99276 | GLSA-201704-03 : X.Org: Multiple vulnerabilities | Nessus | Gentoo Local Security Checks | critical |
| 97538 | Fedora 24 : libXdmcp (2017-bcb1999e65) | Nessus | Fedora Local Security Checks | medium |
| 97502 | Fedora 25 : libXdmcp (2017-9a9328c159) | Nessus | Fedora Local Security Checks | medium |