CVE-2024-2056
Auth Bypass in Articatech Artica Proxy 4.50.000000
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HCVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.
Summary
CVE-2024-2056 is a critical-severity Authentication Bypass Using an Alternate Path or Channel (CWE-288) vulnerability in Articatech Artica Proxy. Its CVSS base score is 9.8 (Critical).
Operationally, exploitation aligns with the MITRE ATT&CK technique Automated Collection (T1119); ranked in the top 3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
The strongest mitigations our analysis identified map to AC-25 (Reference Monitor) and AC-3 (Access Enforcement) — 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-2024-2056 affects the Artica Proxy, where services bound to the loopback interface remain reachable through the proxy itself. In particular the tailon service, which runs as root and listens on TCP port 7050, can be reached externally, exposing the ability to read the contents of arbitrary files on the system. The flaw is rated 9.8 under CVSS 3.1 and is associated with CWE-288 and CWE-552.
An unauthenticated remote attacker can route requests through the proxy to the locally bound tailon instance and retrieve any file present on the Artica Proxy host, resulting in full disclosure of sensitive data and potential follow-on integrity or availability impacts.
Public references, including a KoreLogic advisory and Full Disclosure postings, point to the documented security risks of exposing tailon without additional controls, as noted in the project's own repository. The EPSS score has remained low, with only a minor peak of 0.0562.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2024-27021
Vulnerability Data
Services that are running and bound to the loopback interface on the Artica Proxy are accessible through the proxy service. In particular, the "tailon" service is running, running as the root user, is bound to the loopback interface, and is…
more
listening on TCP port 7050. Security issues associated with exposing this network service are documented at gvalkov's 'tailon' GitHub repo. Using the tailon service, the contents of any file on the Artica Proxy can be viewed.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Control response
—
—
- 12 hardening rules · 4 OS baselines
V6.4.3V6.6.1V12.1.3V8.4.2
Mitigating Controls (NIST 800-53 r5) AI
Requires a tamperproof, always-invoked reference monitor that structurally blocks bypass via any alternate path.
Enforces authorization checks on every logical access path, eliminating unauthenticated alternate channels.
AC-6 limits granted privileges, reducing the chance that files or directories become reachable by external parties.
Mandates unique identification and authentication for all organizational users, covering the primary authentication requirement.
AC-4 enforces information flow rules that can block unauthorized external access to files or directories.
Controls all external and key internal interfaces, reducing the chance of unauthenticated alternate channels.
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.
Requiring authentication on every channel and path directly eliminates alternate-path bypasses.
Enforcing authorizations and least privilege across all access vectors prevents unauthenticated alternate paths.
Data-at-rest protections such as encryption or ACLs reduce the impact of unintended file exposure.
Protecting networks and environments from unauthorized logical access blocks bypass via undocumented channels.
Hardened configuration baselines commonly include file-system permission settings that limit external access.
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.
A.5.15 only requires defining a topic-specific access control policy and determining requirements; it does not itself enforce, implement or configure any access rules that would stop an alternate unauthenticated path from being exploitable.
Access rights provisioning and review prevent bypass via unmonitored or alternate channels.
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` (higher-evidence rows only; rows rated `none` are excluded).
Oracle Linux 8 (4 rules)
- V-248598 There must be no ".shosts" files on the OL 8 operating system. blocks CWE-288
- V-248827 OL 8 must not have the rsh-server package installed. blocks CWE-288
- V-248579 OL 8 must restrict access to the kernel message buffer. blocks CWE-552
Oracle Linux 9 (2 rules)
- V-271757 OL 9 file systems must not contain shosts.equiv files. blocks CWE-288
- V-271758 OL 9 file systems must not contain .shosts files. blocks CWE-288
RHEL 7 (3 rules)
- V-204440 Red Hat Enterprise Linux operating systems version 7.2 or newer using Unified Extensible Firmware Interface (UEFI) must require authentication upon booting into single-user and maintenance modes. blocks CWE-288
- V-204442 The Red Hat Enterprise Linux operating system must not have the rsh-server package installed. blocks CWE-288
- V-204424 The Red Hat Enterprise Linux operating system must not allow accounts configured with blank or null passwords. blocks CWE-288