Yubico pam-u2f 1.0.7 Log File File Descriptor information disclosure

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CVSS Meta Temp Score
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7.2$0-$5k0.00

A vulnerability has been found in Yubico pam-u2f 1.0.7 and classified as critical. This vulnerability affects an unknown function of the component Log File. The manipulation as part of a File Descriptor leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

In Yubico pam-u2f 1.0.7, when configured with debug and a custom debug log file is set using debug_file, that file descriptor is not closed when a new process is spawned. This leads to the file descriptor being inherited into the child process; the child process can then read from and write to it. This can leak sensitive information and also, if written to, be used to fill the disk or plant misinformation.

The weakness was published 06/04/2019 (Website). The advisory is shared for download at developers.yubico.com. This vulnerability was named CVE-2019-12210 since 05/20/2019. The attack can be initiated remotely. The successful exploitation requires a single authentication. There are neither technical details nor an exploit publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Similar entry is available at 135939.

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VulDB Meta Base Score: 7.2
VulDB Meta Temp Score: 7.2

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.1
NVD Vector: 🔍

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Exploitinginfoedit

Class: Information disclosure
CWE: CWE-200
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔍

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Recommended: no mitigation known
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Timelineinfoedit

05/20/2019 🔍
06/04/2019 +15 days 🔍
06/05/2019 +1 days 🔍
06/19/2020 +380 days 🔍

Sourcesinfoedit

Advisory: developers.yubico.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2019-12210 (🔍)
See also: 🔍

Entryinfoedit

Created: 06/05/2019 07:21 AM
Updated: 06/19/2020 10:27 AM
Changes: (1) advisory_confirm_url
Complete: 🔍

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