Component takeover in Oracle Data Provider for .NET

CVE-2023-21893 → View on GitHub ↗ View on CVE.org ↗ View on NVD ↗

Description

Vulnerability in the Oracle Data Provider for .NET component of Oracle Database Server. Supported versions that are affected are 19c and 21c. Difficult to exploit vulnerability allows unauthenticated attacker with network access via TCPS to compromise Oracle Data Provider for .NET. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in takeover of Oracle Data Provider for .NET. Note: Applies also to Database client-only on Windows platform. CVSS 3.1 Base Score 7.5 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H).

See the readme.txt files inside the .nupkg packages for a reference to the fix.

Basic information

Type
reviewed
Severity
high
Advisory on GitHub
Open advisory ↗
Repository advisory
—
Source code
Not specified
Published (advisory)
2023-01-18 00:30:16 UTC
Updated
2024-09-17 16:27:19 UTC
GitHub reviewed
2023-04-12 23:07:14 UTC
NVD published
2023-01-17

EPSS Score

Score Percentile
1.06% 77.51%

CVSS Scores

Base score Version Severity Vector
7.5 3.1 —
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/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:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
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-5pm2-9mr2-3frq ↗
CVE CVE-2023-21893 ↗

CWEs

CWE id Name
CWE-284 Improper Access Control

Credits

  • georg-jung (analyst)
  • alexkeh (analyst)

Affected packages (4)

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

Ecosystem Package Vulnerable range First patched Vulnerable functions
nuget Oracle.ManagedDataAccess >= 21.0.0, < 21.9.0 21.9.0 —
nuget Oracle.ManagedDataAccess.Core >= 3.21.0, < 3.21.90 3.21.90 —
nuget Oracle.ManagedDataAccess >= 19.0.0, < 19.18.0 19.18.0 —
nuget Oracle.ManagedDataAccess.Core >= 2.19.0, < 2.19.180 2.19.180 —

References

cvelogic Threat Intelligence