CVE-2023-27842
Extplorer 2.1.15
Raw vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSummary
CVE-2023-27842 is a high-severity Insecure Inherited Permissions (CWE-277) vulnerability in Extplorer Extplorer. Its CVSS base score is 8.8 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Path Interception (T1034); ranked in the top 17% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
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-2023-27842 is an insecure permissions vulnerability affecting the index.php component of eXtplorer file manager version 2.1.15. The flaw carries a CVSS 3.1 score of 8.8 and is associated with CWE-277, enabling remote code execution when the component processes requests without adequate permission checks.
A remote attacker with low-privileged access can exploit the issue over the network to achieve arbitrary code execution, resulting in full confidentiality, integrity, and availability impacts on the affected installation. The current EPSS score of 0.4515, with a recorded peak of 0.4971, indicates moderate and relatively stable exploitation interest since disclosure.
Public references include a detailed technical write-up, a proof-of-concept repository, and the vendor site hosting the 2.1.15 release archive, though no explicit patch or mitigation guidance is documented in the available sources.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-31578
Vulnerability Data
Insecure Permissions vulnerability found in Extplorer File manager eXtplorer v.2.1.15 allows a remote attacker to execute arbitrary code via the index.php compenent
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Control response
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- 8 hardening rules · 3 OS baselines
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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.
Directly addresses defining and enforcing secure access permissions and least privilege, which prevents insecure inheritance.
Configuration management practices include establishing secure permission baselines that avoid insecure inheritance.
Secure SDLC practices would catch and prevent defining insecure inherited permissions during development.
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.
Security testing may detect permission issues but does not prevent insecure inheritance by design.
Privileged access rights management can limit inheritance of excessive permissions but does not directly address insecure default permission inheritance.
Secure development lifecycle practices can include permission model reviews but do not guarantee secure inherited permissions.
Secure system architecture principles can incorporate least-privilege permission models but do not specifically mandate secure inheritance.
Secure coding standards can explicitly require setting restrictive permissions at object creation, directly mitigating insecure inheritance.
Information access restriction policies can reduce risk from inherited permissions but do not enforce secure permission inheritance at creation time.
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).
Windows Server 2016 (2 rules)
- V-224974 Domain-created Active Directory Organizational Unit (OU) objects must have proper access control permissions. prevents CWE-277
- V-224972 Active Directory Group Policy objects must have proper access control permissions. prevents CWE-277
Windows Server 2019 (2 rules)
- V-205743 Windows Server 2019 organization created Active Directory Organizational Unit (OU) objects must have proper access control permissions. prevents CWE-277
- V-205741 Windows Server 2019 Active Directory Group Policy objects must have proper access control permissions. prevents CWE-277
Windows Server 2022 (1 rule)
- V-254395 Windows Server 2022 organization created Active Directory Organizational Unit (OU) objects must have proper access control permissions. prevents CWE-277