Sunhillo SureLine Authentication Bypass via Session Cookie
- Published
- Last modified
- Status
- published
- Known exploitation
- Not listed in CISA KEV
- Fix
- Fixed in 9.1.5
- Public exploit
- None on Exploit-DB
Summary
Sunhillo SureLine's web interface can be bypassed by an unauthenticated remote attacker who forges a session cookie containing only a plaintext username, letting them impersonate users and potentially gain root-level command execution on the system.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original description
Sunhillo SureLine before 9.1.5 contains an authentication bypass vulnerability that allows an unauthenticated remote attacker to impersonate any user with an active web session by forging a session cookie containing only a cleartext username with no random identifier or integrity protection. Attackers can guess default account names such as Admin or sftp_user and submit a forged username cookie to satisfy the login check in checkLogin (libwebcmn.so) and networkDiag.cgi, chaining into root command execution.
Affected versions
- Sunhillo Corporation SureLine
From 8.0.0 · fixed in 9.1.5