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Medium severity · published Jun 13, 2017
CVE-2017-4970
An issue was discovered in Cloud Foundry Foundation cf-release v255 and Staticfile buildpack versions v1.4.0 - v1.4.3
5.9
CVSS
0.7%
EPSS
No
On KEV
Description
An issue was discovered in Cloud Foundry Foundation cf-release v255 and Staticfile buildpack versions v1.4.0 - v1.4.3. A regression introduced in the Static file build pack causes the Staticfile.auth configuration to be ignored when the Static file file is not present in the application root. Applications containing a Staticfile.auth file but not a Static file had their basic auth turned off when an operator upgraded the Static file build pack in the foundation to one of the vulnerable versions. Note that Static file applications without a Static file are technically misconfigured, and will not successfully detect unless the Static file build pack is explicitly specified.
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 53% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CF
Cf-release · Cloudfoundry
255 · source: NVD
SB
Staticfile Buildpack · Cloudfoundry
1.4.0; 1.4.1; 1.4.2; 1.4.3 · source: NVD
Affected product
CF
Cf-release
Cloudfoundry
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-4970
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-4970
Mitigation
https://www.cloudfoundry.org/cve-2017-4970/
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