CVE-2019-25615 Overview
CVE-2019-25615 is a Structured Exception Handler (SEH) buffer overflow vulnerability in Lavavo CD Ripper 4.20. The flaw resides in the License Activation Name field, which fails to validate the length of user-supplied input. Local attackers can submit a crafted string containing controlled buffer data, an NSEH jump instruction, and a SEH handler address to hijack exception handling and execute arbitrary code. Public proof-of-concept code establishes a bind shell on TCP port 3110 after successful exploitation. The vulnerability is classified under CWE-787: Out-of-bounds Write.
Critical Impact
Successful exploitation gives an attacker arbitrary code execution in the context of the user running Lavavo CD Ripper, with a public exploit available on Exploit-DB.
Affected Products
- Lavavo CD Ripper 4.20
- Distributions of Lavavo CD Ripper from the Jaleco Download Page
- Builds distributed via the LavaVo Software Homepage
Discovery Timeline
- 2026-03-22 - CVE-2019-25615 published to NVD
- 2026-04-16 - Last updated in NVD database
Technical Details for CVE-2019-25615
Vulnerability Analysis
Lavavo CD Ripper 4.20 copies the License Activation Name field into a fixed-size stack buffer without bounds checking. When the input exceeds the allocated size, the overflow overwrites adjacent stack memory, including the Structured Exception Handler record. By overwriting both the Next SEH pointer (NSEH) and the SEH handler pointer, an attacker controls the address used when an exception is raised during the corrupted state.
The vulnerability follows the classic Windows SEH exploitation pattern. The attacker forces an exception after overwriting the handler, redirecting execution to a POP POP RET gadget that pivots into the attacker-controlled NSEH field. From there, a short jump reaches the shellcode payload placed earlier in the buffer.
Root Cause
The root cause is missing input length validation in the License Activation routine. The application uses an unsafe string copy operation that writes past the destination buffer boundary [CWE-787]. Compiler-level SEH protections such as /SafeSEH and SEHOP appear absent or ineffective in the affected build, allowing the corrupted handler to be invoked.
Attack Vector
Exploitation requires local interaction with the application. An attacker supplies a malicious string in the License Activation Name field, triggering the overflow when the input is processed. The publicly available proof of concept on Exploit-DB #46755 demonstrates payload construction and shellcode that opens a bind shell on TCP port 3110. Additional technical details are documented in the VulnCheck Advisory on Buffer Overflow.
The payload layout follows a standard SEH overwrite structure: a junk buffer fills space up to the SEH record, a near-jump opcode is placed in NSEH, the SEH handler is overwritten with the address of a POP POP RET instruction sequence from a non-SafeSEH module, and shellcode follows after a short forward jump.
Detection Methods for CVE-2019-25615
Indicators of Compromise
- Unexpected listening socket on TCP port 3110 on hosts running Lavavo CD Ripper
- Lavavo CD Ripper.exe process spawning command interpreters such as cmd.exe or powershell.exe
- Application crash events in the Windows Event Log referencing Lavavo CD Ripper with exception codes consistent with stack corruption
- Outbound network connections initiated by the Lavavo CD Ripper process
Detection Strategies
- Monitor process creation events where Lavavo CD Ripper.exe is the parent of shell or scripting hosts
- Alert on new bind listeners on uncommon ports, with TCP 3110 as a specific indicator tied to the public PoC
- Inspect Windows Error Reporting and WerFault.exe telemetry for repeated faults in Lavavo CD Ripper modules
Monitoring Recommendations
- Collect endpoint process, network, and crash telemetry from hosts where Lavavo CD Ripper is installed
- Track unusual child processes and outbound connections originating from media utility applications
- Correlate application crash reports with subsequent network listener creation on the same host
How to Mitigate CVE-2019-25615
Immediate Actions Required
- Uninstall Lavavo CD Ripper 4.20 from systems where it is not required for business operations
- Restrict local user permissions to prevent untrusted users from launching the application
- Block inbound traffic to TCP port 3110 at host and network firewalls
Patch Information
No vendor patch is currently referenced in the NVD record for CVE-2019-25615. Users should consult the LavaVo Software Homepage and the Jaleco Download Page for updated builds, and review the VulnCheck Advisory on Buffer Overflow for the latest remediation status.
Workarounds
- Remove Lavavo CD Ripper 4.20 and replace it with a maintained CD ripping utility until a fixed build is published
- Enforce system-wide SEHOP and DEP through Windows Exploit Protection to reduce the reliability of SEH-based exploitation
- Apply application allowlisting to prevent untrusted users from executing Lavavo CD Ripper.exe
- Run the application under a low-privilege account with no network listening capability through host firewall rules
# Windows Exploit Protection: enforce SEHOP and DEP for the application
Set-ProcessMitigation -Name "Lavavo CD Ripper.exe" -Enable SEHOP,DEP,ForceRelocateImages
# Block inbound traffic to the bind-shell port used by the public PoC
New-NetFirewallRule -DisplayName "Block Lavavo CD Ripper PoC port 3110" `
-Direction Inbound -Protocol TCP -LocalPort 3110 -Action Block
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
