CVE-2022-2783 in Server
Summary
by MITRE • 10/06/2022
In affected versions of Octopus Server it was identified that a session cookie could be used as the CSRF token
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Analysis
by VulDB Data Team • 05/27/2026
The vulnerability identified in CVE-2022-2783 affects Octopus Server versions prior to the patched release, presenting a critical security flaw that undermines the server's cross-site request forgery protection mechanisms. This issue stems from the improper implementation of session management where the session cookie value is inadvertently reused as a CSRF token, creating a fundamental weakness in the application's security architecture. The flaw represents a direct violation of security best practices for CSRF protection, as it eliminates the cryptographic randomness and uniqueness that should characterize CSRF tokens. This vulnerability allows attackers to bypass the server's CSRF protection measures by leveraging the session cookie value as a valid CSRF token, effectively undermining the entire CSRF defense mechanism.
The technical implementation of this vulnerability occurs within the Octopus Server's authentication and authorization framework where session identifiers are improperly repurposed for CSRF protection purposes. According to CWE-352, this represents a classic cross-site request forgery vulnerability where the same value serves dual purposes without proper cryptographic separation. The flaw demonstrates poor security design principles as the system fails to generate unique, unpredictable tokens for each request. The session cookie, which should remain opaque to external parties, becomes directly usable by attackers to forge authenticated requests. This issue aligns with ATT&CK technique T1566.001 which describes credential harvesting through web application attacks, where the vulnerability enables attackers to escalate privileges and execute unauthorized actions within the Octopus Server environment.
The operational impact of CVE-2022-2783 extends beyond simple privilege escalation, as it allows attackers to perform unauthorized administrative actions within the Octopus Server environment. This includes but is not limited to deploying new releases, modifying deployment configurations, accessing sensitive configuration data, and potentially gaining persistence within the deployment infrastructure. The vulnerability affects the integrity and confidentiality of the entire deployment pipeline, as attackers could manipulate deployment processes to execute malicious code or alter deployment outcomes. Organizations relying on Octopus Server for continuous integration and deployment operations face significant risk of supply chain attacks where compromised deployment systems could affect multiple downstream applications and services. The vulnerability also impacts the availability of the deployment system as attackers could potentially disrupt ongoing deployments or cause system instability through malicious request manipulation.
Mitigation strategies for CVE-2022-2783 require immediate implementation of proper CSRF token generation mechanisms that ensure cryptographic randomness and uniqueness for each request. Organizations should upgrade to patched versions of Octopus Server where the session cookie is no longer used as a CSRF token, and where proper CSRF token generation is implemented according to industry standards. The fix should implement dedicated CSRF token generation using cryptographically secure random number generators as specified in NIST SP 800-90A. Security teams should also implement additional monitoring for suspicious authentication patterns and request manipulation attempts. Network segmentation and access controls should be strengthened to limit exposure of the Octopus Server to untrusted networks, while regular security assessments should verify proper implementation of CSRF protection mechanisms. The vulnerability highlights the importance of proper security architecture reviews and adherence to secure coding practices as outlined in OWASP Top Ten and ISO 27001 security requirements, ensuring that session management and authentication mechanisms are properly separated and independently secured.