CVE-2022-27511
Published: 16 June 2022
Summary
CVE-2022-27511 is a high-severity Improper Access Control (CWE-284) vulnerability in Citrix Application Delivery Management. Its CVSS base score is 8.1 (High).
Operationally, ranked in the top 4.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
CVE-2022-27511 is a system corruption vulnerability affecting Citrix Application Delivery Management. A remote unauthenticated attacker can trigger the flaw, which carries a CVSS 3.1 score of 8.1 and is associated with CWE-284 improper access control. Successful exploitation can reset the administrator password on the next device reboot.
An attacker with subsequent SSH access can then authenticate using the default administrator credentials once the system restarts. The attack requires no prior authentication or user interaction and can be launched over the network, although the CVSS vector notes high attack complexity.
Citrix has published security bulletin CTX460016 that addresses both CVE-2022-27511 and CVE-2022-27512; the bulletin is available at the referenced support.citrix.com URLs and contains mitigation guidance and patch information. The associated EPSS score has remained flat at 0.2237 with no material increase observed after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-32012
Vulnerability details
Corruption of the system by a remote, unauthenticated user. The impact of this can include the reset of the administrator password at the next device reboot, allowing an attacker with ssh access to connect with the default administrator credentials after…
more
the device has rebooted.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
The access control policy and procedures directly mandate and enforce proper access control mechanisms across the organization.
Device lock enforces restricted access until re-authentication, directly reducing unauthorized use of active sessions.
Supervision and review of access control activities directly detects and remediates improper access configurations or usages.
Explicitly identifying and documenting actions permitted without identification or authentication enforces proper access control boundaries by defining justified exceptions.
By automatically labeling outputs with security attributes, the control supports attribute-based enforcement and reduces exploitability of improper access control weaknesses.
Associating and retaining security attributes with data directly supports enforcement of access control decisions across storage, processing, and transmission.
Requiring prior authorization for each remote access type prevents improper access control over remote connections.
Requiring authorization of wireless access before allowing connections enforces proper access control for this access method.