Red Hat Ansible Engine up to 2.7.17/2.8.9/2.9.6 Playbook temp file

Summaryinfo

A vulnerability was found in Red Hat Ansible Engine up to 2.7.17/2.8.9/2.9.6 and classified as critical. The affected element is an unknown function of the component Playbook Handler. The manipulation results in temp file. This vulnerability is cataloged as CVE-2020-1733. The attack must be initiated from a local position. There is no exploit available.

Detailsinfo

A vulnerability classified as critical has been found in Red Hat Ansible Engine up to 2.7.17/2.8.9/2.9.6. Affected is an unknown code of the component Playbook Handler. The manipulation with an unknown input leads to a temp file vulnerability. CWE is classifying the issue as CWE-377. Creating and using insecure temporary files can leave application and system data vulnerable to attack. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

A race condition flaw was found in Ansible Engine 2.7.17 and prior, 2.8.9 and prior, 2.9.6 and prior when running a playbook with an unprivileged become user. When Ansible needs to run a module with become user, the temporary directory is created in /var/tmp. This directory is created with "umask 77 && mkdir -p <dir>"; this operation does not fail if the directory already exists and is owned by another user. An attacker could take advantage to gain control of the become user as the target directory can be retrieved by iterating '/proc/<pid>/cmdline'.

The weakness was shared 03/11/2020 as not defined bug report (Bugzilla). The advisory is shared for download at bugzilla.redhat.com. This vulnerability is traded as CVE-2020-1733 since 11/27/2019. The exploitability is told to be difficult. The attack needs to be approached locally. A authentication is needed for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 08/22/2022).

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

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Productinfo

Vendor

• Red Hat

Name

• Ansible Engine

Version

• 2.7.0
• 2.7.1
• 2.7.2
• 2.7.3
• 2.7.4
• 2.7.5
• 2.7.6
• 2.7.7
• 2.7.8
• 2.7.9
• 2.7.10
• 2.7.11
• 2.7.12
• 2.7.13
• 2.7.14
• 2.7.15
• 2.7.16
• 2.7.17
• 2.8.0
• 2.8.1
• 2.8.2
• 2.8.3
• 2.8.4
• 2.8.5
• 2.8.6
• 2.8.7
• 2.8.8
• 2.8.9
• 2.9.0
• 2.9.1
• 2.9.2
• 2.9.3
• 2.9.4
• 2.9.5
• 2.9.6

License

• open-source

Website

• Vendor: https://www.redhat.com/

CPE 2.3info

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CPE 2.2info

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