CVE-2019-12749
At a glance
- Source
- NVD
- EPSS
- EPSS 0.55 % · percentile 46 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- mitre
- NVD status
- Modified
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.
Weaknesses (CWE)
- CWE-59 — Improper Link Resolution Before File Access
References
- https://www.openwall.com/lists/oss-security/2019/06/11/2
- http://www.openwall.com/lists/oss-security/2019/06/11/2
- https://usn.ubuntu.com/4015-1/
- https://usn.ubuntu.com/4015-2/
- https://www.debian.org/security/2019/dsa-4462
- https://seclists.org/bugtraq/2019/Jun/16
- http://www.securityfocus.com/bid/108751
- https://lists.debian.org/debian-lts-announce/2019/06/msg00005.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V2CQF37O73VH2JDVX2ILX2KD2KLXLQOU/
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00059.html
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00092.html
- https://access.redhat.com/errata/RHSA-2019:1726
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00026.html
- https://security.gentoo.org/glsa/201909-08
- https://access.redhat.com/errata/RHSA-2019:2868
- https://access.redhat.com/errata/RHSA-2019:2870
- https://access.redhat.com/errata/RHSA-2019:3707
- https://security.netapp.com/advisory/ntap-20241206-0010/
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.1 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N | CISA-ADP |
| CVSS 3.1 | HIGH 7.1 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N | NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary) |
| CVSS 3.0 | HIGH 7.1 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | LOW 3.6 | AV:L/AC:L/Au:N/C:P/I:P/A:N | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2019-4335
- GCVE · GCVE-0-2019-12749
CERT-FR advisories
- CERTFR-2022-AVI-267 — Multiples vulnérabilités dans Juniper Networks Junos Space · cert.ssi.gouv.fr
- CERTFR-2021-AVI-952 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
- CERTFR-2021-AVI-912 — Multiples vulnérabilités dans IBM Qradar · cert.ssi.gouv.fr
- CERTFR-2021-AVI-700 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
- CERTFR-2020-AVI-049 — Vulnérabilité dans IBM WebSphere · cert.ssi.gouv.fr
- CERTFR-2020-AVI-015 — Multiples vulnérabilités dans les produits Juniper · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:freedesktop:dbus:*:*:*:*:*:*:*:*< 1.10.28cpe:2.3:a:freedesktop:dbus:*:*:*:*:*:*:*:*≥ 1.12.0 < 1.12.16cpe:2.3:a:freedesktop:dbus:*:*:*:*:*:*:*:*≥ 1.13.0 < 1.13.12cpe: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:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| affected n/a |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |