Cyber Resilience

CVE-2025-25182

Auth Bypass

Published
12 February 2025
Modified
15 April 2026
CVSS Score v3.1 9.4
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
EPSS Score 0.0070 51th percentile
Risk Priority 70 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2025-25182 is a critical-severity Authentication Bypass by Spoofing (CWE-290) vulnerability. Its CVSS base score is 9.4 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Adversary-in-the-Middle (T1557); ranked in the top 49% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to IA-2 (Identification and Authentication (Organizational Users)) and IA-3 (Device Identification and Authentication) — see the control section below for these in your framework.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

CVE-2025-25182 is an authentication bypass vulnerability (CWE-290) affecting Stroom, an open-source data processing, storage, and analysis platform developed by GCHQ. The issue impacts versions starting from 7.2-beta.53 up to but not including 7.2.24, 7.3-beta.22, 7.4.4, and 7.5-beta.2. It arises specifically when Stroom is configured with AWS Application Load Balancer (ALB) authentication integration and the application is deployed in a way that makes it directly network-accessible outside of the ALB itself. The vulnerability carries a CVSS v3.1 base score of 9.4 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L), indicating high severity due to its network reachability and lack of prerequisites.

Attackers can exploit this vulnerability remotely without authentication by directly accessing the Stroom instance bypassing the ALB. Successful exploitation grants unauthorized access to the system. Additionally, it may enable server-side request forgery (SSRF), potentially targeting the AWS instance metadata URL to achieve remote code execution or further privilege escalation in AWS environments.

The vulnerability has been addressed in Stroom versions 7.2.24, 7.3-beta.22, 7.4.4, and 7.5-beta.2. Security practitioners should upgrade to one of these fixed releases. Detailed information, including the patch via pull request, is available in the GitHub security advisory (GHSA-x489-xx2m-vc43) and the corresponding pull request (#4320).

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

Stroom is a data processing, storage and analysis platform. A vulnerability exists starting in version 7.2-beta.53 and prior to versions 7.2.24, 7.3-beta.22, 7.4.4, and 7.5-beta.2 that allows authentication bypass to a Stroom system when configured with ALB and installed in…

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a way that the application is accessible not through the ALB itself. This vulnerability may also allow for server-side request forgery which may lead to code execution or further privileges escalations when using the AWS metadata URL. This scenario assumes that Stroom must be configured to use ALB Authentication integration and the application is network accessible. The vulnerability has been fixed in versions 7.2.24, 7.3-beta.22, 7.4.4, and 7.5-beta.2.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1557 Adversary-in-the-Middle Credential Access
Adversaries may attempt to position themselves between two or more networked devices using an adversary-in-the-middle (AiTM) technique to support follow-on behaviors such as [Network Sniffing](https://attack.
T1557.001 Name Resolution Poisoning and SMB Relay Credential Access
By responding to LLMNR/NBT-NS/mDNS network traffic, adversaries may spoof an authoritative source for name resolution to force communication with an adversary controlled system.
T1036 Masquerading Stealth
Adversaries may attempt to manipulate features of their artifacts to make them appear legitimate or benign to users and/or security tools.
T1036.001 Invalid Code Signature Stealth
Adversaries may attempt to mimic features of valid code signatures to increase the chance of deceiving a user, analyst, or tool.
T1134 Access Token Manipulation Stealth
Adversaries may modify access tokens to operate under a different user or system security context to perform actions and bypass access controls.
T1134.001 Token Impersonation/Theft Stealth
Adversaries may duplicate then impersonate another user's existing token to escalate privileges and bypass access controls.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2025-27389Shared CWE-290
CVE-2025-13953Shared CWE-290
CVE-2025-34063Shared CWE-290
CVE-2026-0834Shared CWE-290
CVE-2024-31784Shared CWE-290
CVE-2025-13635Shared CWE-290
CVE-2024-8901Shared CWE-290
CVE-2026-59916Shared CWE-290
CVE-2025-13455Shared CWE-290
CVE-2025-7448Shared CWE-290

Affected Assets

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)
  • 3 hardening rules · 3 OS baselines
Validate
Prove the fix (OWASP ASVS)
  • V6.4.3
  • V10.4.16
  • V10.5.1
  • V11.4.3

Mitigating Controls (NIST 800-53 r5) AI

Proper unique identification and authentication of users directly stops spoofing-based bypass of authentication.

Device identification and authentication before connection prevents spoofing of devices to bypass auth.

Authentication of non-organizational users blocks external spoofing attempts against the scheme.

Authenticator management ensures credentials cannot be easily spoofed or reused to bypass authentication.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.AA-04 full match
prevents

Protecting, conveying, and verifying identity assertions specifically prevents the spoofing that enables authentication bypass.

PR.AA-03 mostly match
prevents

Requiring authentication of users/services/hardware directly counters spoofing-based bypass when strong methods are used.

PR.AA-02 partial match
prevents

Proofing and binding identities reduces spoofing opportunities during enrollment but does not address runtime authentication implementation flaws.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

degrades

Secure authentication control directly mitigates authentication bypass by spoofing.

degrades

Authentication information management directly addresses credential handling that prevents spoofing.

finds

Security testing can detect spoofing vulnerabilities but does not prevent them by itself.

prevents

Access control policy reduces spoofing opportunities but does not prescribe authentication mechanisms.

prevents

Identity management supports unique identities but does not guarantee resistance to spoofing.

prevents

Access rights assignment limits exposure but does not enforce authentication strength.

Hardening callouts derived

Configuration rules from DISA STIG baselines that bear on weaknesses of the type cited by this CVE. Each rule is shown with the relationship its mapping actually records, against the CWE it was authored against. Derived via CVE→CWE over `controls_xwalks` (authoritative rows only; rows rated `none` are excluded).

Oracle Linux 8 (1 rule)
  • V-248827 OL 8 must not have the rsh-server package installed. prevents CWE-290
RHEL 7 (1 rule)
  • V-204442 The Red Hat Enterprise Linux operating system must not have the rsh-server package installed. prevents CWE-290
RHEL 8 (1 rule)
  • V-230492 RHEL 8 must not have the rsh-server package installed. prevents CWE-290

References