CVE-2020-1740 vulnerability in Red Hat and Other Products

A flaw was found in Ansible Engine when using Ansible Vault for editing encrypted files. When a user executes "ansible-vault edit", another user on the same computer can read the old and new secret, as it is created in a temporary file with mkstemp and the returned file descriptor is closed and the method write_data is called to write the existing secret in the file. This method will delete the file before recreating it insecurely. All versions in 2.7.x, 2.8.x and 2.9.x branches are believed to be vulnerable.

Vulnerability Analysis

CVE-2020-1740 is exploitable with local system access, requires user interaction and a small amount of user privileges. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality and integrity, and no impact on availability.

Attack Vector:

LOCAL

Attack Complexity:

HIGH

Privileges Required:

LOW

User Interaction:

REQUIRED

Scope:

CHANGED

Confidentiality Impact:

LOW

Integrity Impact:

LOW

Availability Impact:

NONE

Weakness Type

Insecure Temporary File

Creating and using insecure temporary files can leave application and system data vulnerable to attack.

Products Associated with CVE-2020-1740

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Affected Versions

Exploit Probability

EPSS

0.03%

Percentile

7.86%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.