Vulnerability Details : CVE-2020-10697
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.
Vulnerability category: Denial of service
Products affected by CVE-2020-10697
- cpe:2.3:a:redhat:ansible_tower:*:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:ansible_tower:*:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:ansible_tower:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-10697
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 10 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-10697
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
3.6
|
LOW | AV:L/AC:L/Au:N/C:P/I:N/A:P |
3.9
|
4.9
|
NIST | |
|
4.4
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L |
1.8
|
2.5
|
NIST |
CWE ids for CVE-2020-10697
-
The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.Assigned by: secalert@redhat.com (Secondary)
-
The product does not perform an authorization check when an actor attempts to access a resource or perform an action.Assigned by: secalert@redhat.com (Secondary)
References for CVE-2020-10697
-
https://bugzilla.redhat.com/show_bug.cgi?id=1818445
1818445 – (CVE-2020-10697) CVE-2020-10697 Tower: memcached deployment is insecure on OpenShiftIssue Tracking;Vendor Advisory
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