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Local Information Disclosure Vulnerability

Low severity GitHub Reviewed Published Feb 24, 2021 in DataDog/datadog-api-client-java • Updated Jan 31, 2023

Package

maven com.datadoghq:datadog-api-client (Maven)

Affected versions

>= 1.0.0-beta.6, < 1.0.0-beta.9

Patched versions

1.0.0-beta.9

Description

Impact

Local information disclosure of sensitive information downloaded via the API using the API Client.

Finding

The Datadog API is executed on a unix-like system with multiple users. The API is used to download a file containing sensitive information. This sensitive information is exposed locally to other users. This vulnerability exists in the API Client for version 1 and 2. The method prepareDownloadFilecreates creates a temporary file with the permissions bits of -rw-r--r-- on unix-like systems. On unix-like systems, the system temporary directory is shared between users. As such, the contents of the file downloaded via the downloadFileFromResponse method will be visible to all other users on the local system.

Analysis of the finding determined that the affected code was unused, meaning that the exploitation likelihood is low. The unused code has been removed, effectively mitigating this issue.

This vulnerability was found due to this query that Jonathan Leitschuh contributed to the Semmle QL project.

Patches

This issue has been patched in version 1.0.0-beta.9.

See also Remove unused downloadFile helpers.

Workarounds

The recommended workaround is to specify java.io.tmpdir when starting the JVM with the flag -Djava.io.tmpdir, specifying a path to a directory with drw------- permissions owned by dd-agent.

References

For more information

If you have any questions or comments about this advisory:

References

Reviewed Mar 3, 2021
Published to the GitHub Advisory Database Mar 3, 2021
Published by the National Vulnerability Database Mar 3, 2021
Last updated Jan 31, 2023

Severity

Low

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
High
Privileges required
Low
User interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
None
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:N/A:N

EPSS score

0.056%
(25th percentile)

CVE ID

CVE-2021-21331

GHSA ID

GHSA-2cxf-6567-7pp6

Source code

No known source code

Credits

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