UAA privilege escalation across identity zones

CVE-2018-1262 → View on GitHub ↗ View on CVE.org ↗ View on NVD ↗

Description

Cloud Foundry Foundation UAA, versions 4.12.X and 4.13.X, introduced a feature which could allow privilege escalation across identity zones for clients performing offline validation. A zone administrator could configure their zone to issue tokens which impersonate another zone, granting up to admin privileges in the impersonated zone for clients performing offline token validation.

Basic information

Type
reviewed
Severity
high
Advisory on GitHub
Open advisory ↗
Repository advisory
—
Source code
Browse source ↗
Published (advisory)
2022-05-13 01:07:03 UTC
Updated
2024-03-01 23:42:46 UTC
GitHub reviewed
2024-03-01 23:42:45 UTC
NVD published
2018-05-15

EPSS Score

Score Percentile
0.39% 59.52%

CVSS Scores

Base score Version Severity Vector
7.2 3.0 —
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.

Identifiers

Type Value
GHSA GHSA-8v97-gv3g-32rf ↗
CVE CVE-2018-1262 ↗

Credits

  • sunSUNQ (analyst)

Affected packages (2)

Vulnerable version ranges and first patched releases as published by GitHub.

Ecosystem Package Vulnerable range First patched Vulnerable functions
maven org.cloudfoundry.identity:cloudfoundry-identity-server >= 4.12.0, < 4.12.2 4.12.2 —
maven org.cloudfoundry.identity:cloudfoundry-identity-server >= 4.13.0, < 4.13.4 4.13.4 —

References

cvelogic Threat Intelligence