CVE-2015-7258

published 2017-08-24

CVE-2015-7258: ZTE ADSL ZXV10 W300 modems W300V2.1.0f_ER7_PE_O57 and W300V2.1.0h_ER7_PE_O57 allow remote authenticated users to obtain user passwords by displaying user…

Priority P2 60 high 8.8 CVSS 3.0

AV N AC L PR L UI N S U C H I H A H

EXPLOIT

ZTE ADSL ZXV10 W300 modems W300V2.1.0f_ER7_PE_O57 and W300V2.1.0h_ER7_PE_O57 allow remote authenticated users to obtain user passwords by displaying user information in a Telnet connection.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
zte	zxv10_w300_firmware	—	—
zte	zxv10_w300_firmware	—	—

Detection & IOCs extracted from sources · hover to see the quote

command login show↗

url http://<host>/password.htm↗

• → Monitor Telnet sessions to ZTE ZXV10 W300 devices for execution of the 'login show' command, which dumps all usernames and cleartext passwords. ↗
• → Detect HTTP POST requests to /password.htm where the 'username' parameter has been tampered to 'admin' by a non-admin authenticated session (e.g., 'support' user), indicating privilege escalation via CVE-2015-7257. ↗
• → Flag any Telnet authentication to ZTE ZXV10 W300 devices (port 23) followed by 'login show' command execution, as this reveals cleartext credentials for all device users. ↗

• · Affected firmware versions are W300V2.1.0f_ER7_PE_O57 and W300V2.1.0h_ER7_PE_O57 only; detection efforts should be scoped to devices running these specific versions. ↗
• · Deployment is primarily concentrated in Peru (used by TdP/Telefónica del Perú), which may help scope network-level detection to relevant geographic or ISP infrastructure. ↗

CVSS provenance

nvd v3.0 8.8 HIGH CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

nvd v2.0 9.0 CRITICAL AV:N/AC:L/Au:S/C:C/I:C/A:C

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