Description
PairDrop through 1.11.2 contains an IP spoofing vulnerability in Peer._setIP that allows remote attackers to join other networks' discovery rooms by supplying a forged cf-connecting-ip header. Attackers who know a victim's public IP can appear as a local device on self-hosted instances not behind Cloudflare to send or receive files.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| schlagmichdoch | PairDrop | ≤ 1.11.2 | — |
References
- GitHub Issue #510 issue-tracking
- https://github.com/schlagmichdoch/PairDrop product
- https://github.com/schlagmichdoch/PairDrop/blob/4862ba3067be1a0f2e0d1e94861dc9200b5bfeea/server/peer.js#L44-L54 technical-description
- https://github.com/schlagmichdoch/PairDrop/blob/4862ba3067be1a0f2e0d1e94861dc9200b5bfeea/server/ws-server.js#L312-L314 technical-description
- VulnCheck Advisory: PairDrop through 1.11.2 IP Spoofing via cf-connecting-ip Header third-party-advisory