7.5
HIGH
CVE-2019-12209
Yubico PAM-U2F Information Disclosure Vulnerability
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.

INFO

Published Date :

June 4, 2019, 9:29 p.m.

Last Modified :

Nov. 7, 2023, 3:03 a.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2019-12209 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Yubico pam-u2f

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2019-12209 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2019-12209 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Nov. 07, 2023

    Action Type Old Value New Value
    Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5FOR4ADC356JPCHAJI5UXZORLC3VNBPS/ [No types assigned]
    Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZCGU6UQLI3ZTW3UYCTMQW7VDL5M4LCWR/ [No types assigned]
    Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/5FOR4ADC356JPCHAJI5UXZORLC3VNBPS/
    Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/ZCGU6UQLI3ZTW3UYCTMQW7VDL5M4LCWR/
  • CWE Remap by [email protected]

    Aug. 24, 2020

    Action Type Old Value New Value
    Changed CWE CWE-200 CWE-59
  • CVE Modified by [email protected]

    Aug. 13, 2019

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/ZCGU6UQLI3ZTW3UYCTMQW7VDL5M4LCWR/ [No Types Assigned]
  • CVE Modified by [email protected]

    Jul. 19, 2019

    Action Type Old Value New Value
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00018.html [No Types Assigned]
  • CVE Modified by [email protected]

    Jul. 19, 2019

    Action Type Old Value New Value
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00012.html [No Types Assigned]
  • CVE Modified by [email protected]

    Jun. 20, 2019

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/5FOR4ADC356JPCHAJI5UXZORLC3VNBPS/ [No Types Assigned]
  • Initial Analysis by [email protected]

    Jun. 05, 2019

    Action Type Old Value New Value
    Added CVSS V2 (AV:N/AC:L/Au:N/C:P/I:N/A:N)
    Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    Changed Reference Type http://www.openwall.com/lists/oss-security/2019/06/05/1 No Types Assigned http://www.openwall.com/lists/oss-security/2019/06/05/1 Exploit, Mailing List, Third Party Advisory
    Changed Reference Type https://github.com/Yubico/pam-u2f/commit/7db3386fcdb454e33a3ea30dcfb8e8960d4c3aa3 No Types Assigned https://github.com/Yubico/pam-u2f/commit/7db3386fcdb454e33a3ea30dcfb8e8960d4c3aa3 Patch, Third Party Advisory
    Changed Reference Type https://developers.yubico.com/pam-u2f/Release_Notes.html No Types Assigned https://developers.yubico.com/pam-u2f/Release_Notes.html Release Notes, Vendor Advisory
    Added CWE CWE-200
    Added CPE Configuration OR *cpe:2.3:a:yubico:pam-u2f:1.0.7:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Jun. 05, 2019

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2019/06/05/1 [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2019-12209 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2019-12209 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

2.23 }} 0.22%

score

0.89777

percentile

CVSS30 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability