CVE

CVE-2020-10697

Date: (C)2021-05-28   (M)2023-12-22

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 Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:		CVSS V2 Severity:
CVSS Score : 4.4		CVSS Score : 3.6
Exploit Score: 1.8		Exploit Score: 3.9
Impact Score: 2.5		Impact Score: 4.9
CVSS V3 Metrics:		CVSS V2 Metrics:
Attack Vector: LOCAL		Access Vector: LOCAL
Attack Complexity: LOW		Access Complexity: LOW
Privileges Required: LOW		Authentication: NONE
User Interaction: NONE		Confidentiality: PARTIAL
Scope: UNCHANGED		Integrity: NONE
Confidentiality: LOW		Availability: PARTIAL
Integrity: NONE
Availability: LOW

Reference:

https://bugzilla.redhat.com/show_bug.cgi?id=1818445