CVE-2019-12209

CVSS V2 Medium 5 CVSS V3 High 7.5
Description
Yubico pam-u2f 1.0.7 attempts parsing of the configured authfile (default $HOME/.config/Yubico/u2f_keys) as root (unless openasuser was enabled), and does not properly verify that the path lacks symlinks pointing to other files on the system owned by root. If the debug option is enabled in the PAM configuration, part of the file contents of a symlink target will be logged, possibly revealing sensitive information.
Overview
  • CVE ID
  • CVE-2019-12209
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Modified
  • Published Version
  • 2019-06-04T21:29:00
  • Last Modified Date
  • 2020-08-24T17:37:01
Weakness Enumerations
CWE URL
CWE-59 http://cwe.mitre.org/data/definitions/59.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:yubico:pam-u2f:1.0.7:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:P/I:N/A:N
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • NONE
  • Availability Impact
  • NONE
  • Base Score
  • 5
  • Severity
  • MEDIUM
  • Exploitability Score
  • 10
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.0
  • Vector String
  • CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • NONE
  • Base Score
  • 7.5
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://github.com/Yubico/pam-u2f/commit/7db3386fcdb454e33a3ea30dcfb8e8960d4c3aa3 Patch Third Party Advisory
https://developers.yubico.com/pam-u2f/Release_Notes.html Release Notes Vendor Advisory
http://www.openwall.com/lists/oss-security/2019/06/05/1 Mailing List Exploit Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5FOR4ADC356JPCHAJI5UXZORLC3VNBPS/
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00012.html
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00018.html
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZCGU6UQLI3ZTW3UYCTMQW7VDL5M4LCWR/
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2019-12209
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-12209
History
Created Old Value New Value Data Type Notes
2022-05-10 16:33:47 Added to TrackCVE
2022-12-03 21:37:06 2019-06-04T21:29Z 2019-06-04T21:29:00 CVE Published Date updated
2022-12-03 21:37:06 2020-08-24T17:37:01 CVE Modified Date updated
2022-12-03 21:37:06 Modified Vulnerability Status updated