Description
A vulnerability, which was classified as critical, has been found in LB-LINK BL-AC1900, BL-AC2100_AZ3, BL-AC3600, BL-AX1800, BL-AX5400P and BL-WR9000 up to 20250702. This issue affects the function bs_GetManPwd in the library libblinkapi.so of the file /cgi-bin/lighttpd.cgi. The manipulation leads to information disclosure. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| LB-LINK | BL-AC1900 | 20250702 | — |
| LB-LINK | BL-AC2100_AZ3 | 20250702 | — |
| LB-LINK | BL-AC3600 | 20250702 | — |
| LB-LINK | BL-AX1800 | 20250702 | — |
| LB-LINK | BL-AX5400P | 20250702 | — |
| LB-LINK | BL-WR9000 | 20250702 | — |
References
- VDB-316271 | LB-LINK BL-WR9000 lighttpd.cgi bs_GetManPwd information disclosure vdb-entry technical-description
- VDB-316271 | CTI Indicators (IOB, IOC, TTP, IOA) signature permissions-required
- Submit #608010 | Blink BL-AX5400P V1.0.19、BL-AX1800 V1.0.19、BL-AC3600 V1.0.22、BL-WR9000 V2.4.9、BL-AC1900 V1.0.2、BL-AC2100_AZ3 V1.0.4 BL-AX5400P V1.0.19、BL-AX1800 V1.0.19、BL-AC3600 V1.0.22、BL-WR9000 V2.4.9、BL-AC1900 V1.0.2、BL-AC2100_AZ3 V1.0.4 Informa third-party-advisory
- https://github.com/waiwai24/0101/blob/main/CVEs/Blink/Web_Interface_Login_Credential_Disclosure_Risk_in_Various_Blink_Router_Models.md related
- https://github.com/waiwai24/0101/blob/main/CVEs/Blink/Web_Interface_Login_Credential_Disclosure_Risk_in_Various_Blink_Router_Models.md#poc exploit