Cloud Controller provides signed URL with write authorization to read only user

published 2019-03-13 7y ago modified 2026-06-17 4mo ago also EUVD-2019-13416

cvss: 6.5; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.3%; EPSS 1.3% chance of exploitation in 30 days, percentile 70%
public exploits: 0; none known

Cloud Foundry Cloud Controller, versions prior to 1.78.0, contain an endpoint with improper authorization. A remote authenticated malicious user with read permissions can request package information and receive a signed bit-service url that grants the user write permissions to the bit-service.

Patch / fix

fixed in 1

Cloud Foundry CAPI 1.78.0

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Exploit prediction

1.27% chance of exploitation in the next 30 days, higher than 70% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	3.0	6.5	CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
NVD	3.1	8.1	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
NVD	2.0	5.5	AV:N/AC:L/Au:S/C:N/I:P/A:P

Affected products

Cloud Foundry CAPI

Classification

Weakness

CWE-285 Improper Authorization
CWE-269 Improper Privilege Management

References

cloudfoundry.org /blog/cve-2019-3785
vendor-advisory
securityfocus.com /bid/107514
vdb-entry, third-party-advisory

Sources

CVE List CVE-2019-3785
NVD CVE-2019-3785

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