CVE-2023-38487 : Vulnerability Insights and Analysis
Learn about CVE-2023-38487 affecting HedgeDoc API. Exploiting the vulnerability allows hiding existing notes, impacting user data integrity. Find mitigation steps here.
HedgeDoc API allows to hide existing notes.
Understanding CVE-2023-38487
HedgeDoc software, prior to version 1.9.9, contains a vulnerability where the API can be exploited to create notes that hide existing ones.
What is CVE-2023-38487?
HedgeDoc API vulnerability allows creating notes with an alias matching an existing note ID, effectively hiding the original note.
The Impact of CVE-2023-38487
The vulnerability allows attackers to replace original note content with malicious data or deny access to genuine notes, affecting user interaction and service availability.
Technical Details of CVE-2023-38487
HedgeDoc version 1.9.9 and below are affected by the vulnerability that allows unauthorized access and manipulation of existing notes.
Vulnerability Description
An attacker can create a note with an ID matching an existing note, rendering the original note inaccessible and potentially manipulating content to deceive users or cause denial of service.
Affected Systems and Versions
- Vendor: HedgeDoc
- Product: HedgeDoc
- Versions Affected: < 1.9.9
Exploitation Mechanism
By exploiting the API to create notes with an alias matching an existing note ID, attackers can hide or manipulate original note content.
Mitigation and Prevention
A fix has been implemented in version 1.9.9, and specific measures can mitigate the impact of CVE-2023-38487.
Immediate Steps to Take
Disable freeURL mode to prevent exploitation. Limit note creation to trusted users by enabling required authentication.
Long-Term Security Practices
Regularly update HedgeDoc to the latest version. Enforce secure authentication protocols and restrict note creation permissions.
Patching and Updates
Ensure HedgeDoc is updated to version 1.9.9 to address the vulnerability and enhance system security.