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CVE-2016-4435: Pivotal Bosh Stemcell: Authentication bypass
CVE-2016-4435 is rated critical with a CVSS v3.0 base score of 9.0 and NVD lists Pivotal Bosh Stemcell as the affected product. Per its scoring, it can be exploited over the network, without authentication, without any user interaction. The scored impact on confidentiality, integrity and availability is the highest available.
Vulnerability description
An endpoint of the Agent running on the BOSH Director VM with stemcell versions prior to 3232.6 and 3146.13 may allow unauthenticated clients to read or write blobs or cause a denial of service attack on the Director VM. This vulnerability requires that the unauthenticated clients guess or find a URL matching an existing GUID.
Severity breakdown
CVSS v3.0 9.0: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
- Attack vector: Network. Exploitable remotely over the network, with no need for local or physical access.
- Attack complexity: High. Success depends on conditions outside the attacker’s control.
- Privileges required: None. No account or prior access is needed.
- User interaction: None. No action from any user is needed.
- Scope: Changed. Impact reaches beyond the vulnerable component to other resources.
- Confidentiality impact: High. Total loss of confidentiality; sensitive data can be fully disclosed.
- Integrity impact: High. Total loss of integrity; data or system state can be fully modified.
- Availability impact: High. Total loss of availability; the component can be shut down.
Affected products
- Pivotal Bosh Stemcell: up to and including 3232.4; 3146.13