Information disclosure in Debian Linux
CVE-2020-1740
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.9 (Low). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.004 (29.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 29.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Debian Linux — versions 8.0, 10.0
- Fedoraproject Fedora — versions 30, 31, 32
- Red Hat Ansible — versions 2.7.x, 2.8.x, 2.9.x
- Red Hat Ansible
- Red Hat Ansible Tower
- Red Hat Cloudforms Management Engine — versions 5.0
- Red Hat OpenStack — versions 13
Weakness classification (CWE)
Public proof-of-concept exploits
References
- bugzilla.redhat.com/show_bug.cgi (Issue Tracking, Vendor Advisory)
- github.com/ansible/ansible/issues/67798 (Third Party Advisory, Issue Tracking)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.debian.org/debian-lts-announce/2020/05/msg00005.html (mailing-list, Mailing List, Third Party Advisory)
- security.gentoo.org/glsa/202006-11 (vendor-advisory, Third Party Advisory)
- www.debian.org/security/2021/dsa-4950 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-1740?
- CVE-2020-1740 is a low-severity vulnerability in Debian Linux, classified under Insecure Temporary File. CVSS score: 3.9/10. Published 2020-03-16.
- How severe is CVE-2020-1740?
- Low severity. CVSS v3 base score is 3.9 out of 10.
- Is CVE-2020-1740 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.