Vulnerability CVE-2020-1740


Published: 2020-03-16

Description:
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.

Type:

CWE-200

(Information Exposure)

CVSS2 => (AV:L/AC:M/Au:N/C:P/I:N/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
1.9/10
2.9/10
3.4/10
Exploit range
Attack complexity
Authentication
Local
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
None
Affected software
Redhat -> Ansible 
Redhat -> Ansible tower 
Redhat -> Cloudforms management engine 
Redhat -> Openstack 

 References:
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1740
https://github.com/ansible/ansible/issues/67798

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