Tew Wlc100P Firmware
Monthly
Cleartext identity exposure in the TRENDnet TEW-WLC100P wireless controller (firmware 2.03b03) stems from its bundled racoon IKE daemon shipping with aggressive mode as the first exchange_mode entry. Because IKE Phase 1 aggressive mode transmits identity payloads in plaintext and sends a hash of the pre-shared key that can be captured, any party observing or initiating a negotiation can harvest identities and mount offline dictionary attacks against the PSK. No public exploit identified at time of analysis and the EPSS probability is low (0.27%, 19th percentile), consistent with a configuration-hardening weakness rather than a mass-exploited flaw.
Pre-Shared Key hash disclosure affects the TRENDnet TEW-WLC100P wireless LAN controller running firmware 2.03b03, whose bundled strongSwan configuration ships with the i_dont_care_about_security_and_use_aggressive_mode_psk option enabled by default. Because the IKE responder accepts IKEv1 Aggressive Mode with PSK, it transmits the PSK hash in the clear during negotiation, letting a network-positioned attacker capture it and mount an offline dictionary/brute-force crack to recover the VPN pre-shared secret. There is no public exploit identified at time of analysis, no CISA KEV listing, and EPSS is low (0.36%), reflecting an information-disclosure weakness rather than direct remote code execution.
Cleartext identity exposure in the TRENDnet TEW-WLC100P wireless controller (firmware 2.03b03) stems from its bundled racoon IKE daemon shipping with aggressive mode as the first exchange_mode entry. Because IKE Phase 1 aggressive mode transmits identity payloads in plaintext and sends a hash of the pre-shared key that can be captured, any party observing or initiating a negotiation can harvest identities and mount offline dictionary attacks against the PSK. No public exploit identified at time of analysis and the EPSS probability is low (0.27%, 19th percentile), consistent with a configuration-hardening weakness rather than a mass-exploited flaw.
Pre-Shared Key hash disclosure affects the TRENDnet TEW-WLC100P wireless LAN controller running firmware 2.03b03, whose bundled strongSwan configuration ships with the i_dont_care_about_security_and_use_aggressive_mode_psk option enabled by default. Because the IKE responder accepts IKEv1 Aggressive Mode with PSK, it transmits the PSK hash in the clear during negotiation, letting a network-positioned attacker capture it and mount an offline dictionary/brute-force crack to recover the VPN pre-shared secret. There is no public exploit identified at time of analysis, no CISA KEV listing, and EPSS is low (0.36%), reflecting an information-disclosure weakness rather than direct remote code execution.