CVE-2022-22702 in PartKeepr
Summary
by MITRE • 01/10/2022
PartKeepr versions up to v1.4.0, in the functionality to upload attachments using a URL when creating a part does not validate that requests can be made to local ports, allowing an authenticated user to carry out SSRF attacks and port enumeration.
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Analysis
by VulDB Data Team • 01/13/2022
The vulnerability identified as CVE-2022-22702 affects PartKeepr versions up to v1.4.0 and represents a significant server-side request forgery flaw that enables authenticated users to exploit local network resources through improper input validation. This issue specifically manifests in the attachment upload functionality that accepts URLs during part creation processes, creating a pathway for malicious actors to enumerate local ports and potentially access internal systems that should remain isolated from external exposure.
The technical flaw stems from insufficient validation of URL inputs within the PartKeepr application's attachment handling mechanism. When users create parts and provide URLs for attachments, the system fails to properly sanitize or restrict the protocols and destinations that can be accessed through these requests. This validation gap allows an authenticated attacker to craft malicious URLs that target local network services, bypassing normal network security controls that would typically prevent such access. The vulnerability specifically enables port enumeration by allowing requests to different local ports, potentially revealing internal network topology and service configurations.
From an operational impact perspective, this vulnerability poses substantial risks to organizations using PartKeepr for inventory management, particularly in environments where internal systems are not properly isolated. An authenticated user could leverage this flaw to discover running services on local ports, potentially identifying sensitive systems such as databases, management interfaces, or other internal applications. The port enumeration capability provides attackers with valuable reconnaissance information that could facilitate further exploitation attempts, including identifying vulnerable services or systems that might be targeted in subsequent attacks.
The security implications extend beyond simple information disclosure, as this vulnerability can be weaponized to conduct more sophisticated attacks against internal infrastructure. Attackers could potentially use the SSRF capability to access internal APIs, retrieve sensitive data from local services, or even attempt to exploit known vulnerabilities in internal applications that are not directly exposed to the internet. This represents a privilege escalation scenario where a user with legitimate access to the PartKeepr system can leverage their authenticated session to gain unauthorized access to internal resources that should remain protected.
Organizations should implement immediate mitigations including input validation controls that restrict URL protocols to only allow external connections, implementing network segmentation to isolate the PartKeepr application from sensitive internal systems, and deploying web application firewalls that can detect and block suspicious SSRF patterns. The vulnerability aligns with CWE-918, which describes server-side request forgery flaws, and can be mapped to ATT&CK technique T1190 for exploiting vulnerabilities in web applications. Regular security updates and patch management processes should be enforced to prevent similar issues from persisting in updated versions of the software.
The remediation approach should focus on implementing proper URL validation that rejects requests to local network addresses, including private IP ranges and localhost references. Input sanitization mechanisms must be strengthened to ensure that all external URL requests are properly validated against a whitelist of acceptable domains and protocols. Network-level controls should be deployed to prevent internal service access from external applications, and comprehensive logging should be implemented to monitor for suspicious URL access patterns. Additionally, security awareness training for administrators should emphasize the importance of validating third-party applications and maintaining up-to-date security patches to prevent exploitation of known vulnerabilities.