CVE-2018-25024
📋 TL;DR
This vulnerability in the actix-web Rust crate allows attackers to unsoundly coerce immutable references into mutable references, leading to memory corruption. It affects any Rust application using actix-web versions before 0.7.15. This can result in arbitrary code execution or application crashes.
💻 Affected Systems
- actix-web Rust crate
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete system compromise, data theft, or service disruption.
Likely Case
Application crashes, denial of service, or memory corruption leading to unpredictable behavior.
If Mitigated
Limited impact if proper memory safety controls and sandboxing are in place.
🎯 Exploit Status
Memory corruption vulnerabilities in web frameworks are frequently weaponized due to their high impact.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 0.7.15 and later
Vendor Advisory: https://rustsec.org/advisories/RUSTSEC-2018-0019.html
Restart Required: Yes
Instructions:
1. Update Cargo.toml to require actix-web >=0.7.15
2. Run 'cargo update' to fetch the patched version
3. Rebuild and redeploy your application
🔧 Temporary Workarounds
Downgrade to safe version
allPin actix-web to version 0.7.14 or earlier while planning upgrade
cargo update -p actix-web --precise 0.7.14
🧯 If You Can't Patch
- Implement WAF rules to block suspicious requests
- Isolate affected applications in network segments with strict egress filtering
🔍 How to Verify
Check if Vulnerable:
Check Cargo.lock for actix-web version <0.7.15Check Version:
grep actix-web Cargo.lockVerify Fix Applied:
Verify Cargo.lock shows actix-web >=0.7.15📡 Detection & Monitoring
Log Indicators:
- Application crashes, segmentation faults, abnormal memory usage patterns
Network Indicators:
- Unusual HTTP request patterns targeting actix-web endpoints
SIEM Query:
source="application_logs" AND ("segfault" OR "memory corruption" OR "actix-web")🔗 References
- https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/actix-web/RUSTSEC-2018-0019.md
- https://rustsec.org/advisories/RUSTSEC-2018-0019.html
- https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/actix-web/RUSTSEC-2018-0019.md
- https://rustsec.org/advisories/RUSTSEC-2018-0019.html
