Medium severity · published May 27, 2021
CVE-2020-10697
A flaw was found in Ansible Tower when running Openshift
4.4
CVSS
0.2%
EPSS
No
On KEV
Description
A flaw was found in Ansible Tower when running Openshift. Tower runs a memcached, which is accessed via TCP. An attacker can take advantage of writing a playbook polluting this cache, causing a denial of service attack. This attack would not completely stop the service, but in the worst-case scenario, it can reduce the Tower performance, for which memcached is designed. Theoretically, more sophisticated attacks can be performed by manipulating and crafting the cache, as Tower relies on memcached as a place to pull out setting values. Confidential and sensitive data stored in memcached should not be pulled, as this information is encrypted. This flaw affects Ansible Tower versions before 3.6.4, Ansible Tower versions before 3.5.6 and Ansible Tower versions before 3.4.6.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 15% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AT
Ansible Tower · Redhat
before 3.4.6; 3.5.0 before 3.5.6; 3.6.0 before 3.6.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-10697
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-10697
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1818445
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