Description
Gophish through 0.12.1 contains a denial of service vulnerability that allows authenticated users with the User role to exhaust server memory by uploading a crafted Office document as an email template attachment. The ApplyTemplate() function in models/attachment.go processes Office documents as ZIP archives and calls ioutil.ReadAll() on each contained file entry without enforcing size restrictions on uncompressed content, allowing a zip bomb payload to expand to several gigabytes in memory and cause the process to be terminated by the operating system.
Problem types
Allocation of Resources Without Limits or Throttling
Product status
Any version
Credits
Ashik Mohamed (ashikmd7)
References
github.com/...hment Processing Leads to Server DoS/README.md (Researcher Disclosure)
www.vulncheck.com/...l-of-service-via-office-document-upload