CVE-2023-28177

What it actually does

Memory safety bugs in the affected product versions lead to memory corruption that can be leveraged for arbitrary code execution.

Why it matters to the business

Attackers could gain full control over affected systems, resulting in data theft, system compromise, and operational disruption; the issue has been present for over three years with low but stable exploit likelihood.

How an attack unfolds

An attacker crafts malicious input that triggers one of the memory safety issues during normal operation of the affected software, causing memory corruption that with sufficient effort allows execution of attacker-controlled code.

How to fix it

Upgrade webiny/webiny-js to the fixed commit e69288bf5e710060b14497aae8317034c6cb4bcc or later.

How to confirm the fix worked

Confirm the installed version or commit hash matches or exceeds e69288bf5e710060b14497aae8317034c6cb4bcc and test that the previously vulnerable code paths no longer exhibit memory corruption under the same inputs.

Typical attack path

1. Identify a target running an unpatched version of the affected product
2. Deliver malicious input via network or file that exercises the memory safety flaw
3. Trigger memory corruption leading to arbitrary code execution
4. Establish persistence or perform follow-on actions on the compromised system

How to detect it

Review application logs and crash reports for unexpected memory errors or corruption indicators around the time of suspected incidents; no public exploitation artifacts are known.

What your security team should do

• Immediately update all instances of webiny/webiny-js to commit e69288bf5e710060b14497aae8317034c6cb4bcc
• Scan the environment for any remaining older versions and prioritize patching based on exposure to untrusted input
• Monitor for any future memory safety reports in similar components