CVE-2020-10697
개요
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.
내용
Ansible Tower 3.4.5, 3.5.5 and 3.6.3 as well as previous versions are affected when using it in OpenShift.
완화 방법
Currently, there is no mitigation for this issue.
CVSS (Common Vulnerability Scoring System) 점수 세부 사항
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
다음의 CVSS 지표 및 점수는 예비 정보로 검토 대상입니다.
CVSS v3 점수 분석
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| 기본 점수 | 3.4 | 4.4 | N/A |
| 공격 벡터 | Local | Local | N/A |
| 공격 복잡성 | Low | Low | N/A |
| 필요한 권한 | High | Low | N/A |
| 사용자 상호 작용 | None | None | N/A |
| 범위 | Unchanged | Unchanged | N/A |
| 기밀성 | Low | Low | N/A |
| 무결성에 미치는 영향 | None | None | N/A |
| 가용성에 미치는 영향 | Low | Low | N/A |
벡터
Red Hat: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:L
NVD: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L
취약점 이해 (CWE)
Other
Technical Impact: Varies by Context
The impact of insecure defaults varies widely depending on the functionality that the product controls.
감사의 말
This issue was discovered by Ryan Petrello (Red Hat) and Shane McDonald (Red Hat).
