ZTE Router Admin and WLAN Credential Leak via Web Interface

Sensitive data exposure leading to admin/WLAN credential leak in ZTE ZXHN H298A 1.1 and H108N 2.6. A crafted request to the router web interface can expose sensitive device and account information. In affected builds, the response may include the administrator password and WLAN PSK, enabling authentication bypass and network compromise. Some firmware versions may expose only partial identifiers (e.g., serial number, ESSID, MAC addresses).

The HTTPD binary in multiple ZTE routers has a local file inclusion vulnerability in session_init function. The session -LUA- files are stored in the directory /var/lua_session, the function iterates on all files in this directory and executes them using the function dofile without any validation if it is a valid session file or not. An attacker who is able to write a malicious file in the sessions directory can get RCE as root.

The HTTPD binary in multiple ZTE routers has a stack-based buffer overflow vulnerability in rsa_decrypt function. This function is an API wrapper for LUA to decrypt RSA encrypted ciphertext, the decrypted data is stored on the stack without checking its length. An authenticated attacker can get RCE as root by exploiting this vulnerability.

The HTTPD binary in multiple ZTE routers has a stack-based buffer overflow vulnerability in webPrivateDecrypt function. This function is responsible for decrypting RSA encrypted ciphertext, the encrypted data is supplied base64 encoded. The decoded ciphertext is stored on the stack without checking its length. An unauthenticated attacker can get RCE as root by exploiting this vulnerability.

The HTTPD binary in multiple ZTE routers has a stack-based buffer overflow vulnerability in check_data_integrity function. This function is responsible for validating the checksum of data in post request. The checksum is sent encrypted in the request, the function decrypts it and stores the checksum on the stack without validating it. An unauthenticated attacker can get RCE as root by exploiting this vulnerability.

ZTE OX-330P, ZXHN H108N, W300V1.0.0S_ZRD_TR1_D68, HG110, GAN9.8T101A-B, MF28G, ZXHN H108N use non-unique X.509 certificates and SSH host keys, which might allow remote attackers to obtain credentials or other sensitive information via a man-in-the-middle attack, passive decryption attack, or impersonating a legitimate device.

ZTE ZXHN H108N R1A devices before ZTE.bhs.ZXHNH108NR1A.k_PE allow remote attackers to discover usernames and password hashes by reading the cgi-bin/webproc HTML source code, a different vulnerability than CVE-2015-8703.

ZTE ZXHN H108N R1A devices before ZTE.bhs.ZXHNH108NR1A.k_PE allow remote authenticated users to bypass intended access restrictions via a modified request, as demonstrated by leveraging the support account to change a password via a cgi-bin/webproc accountpsd action.

Absolute path traversal vulnerability in cgi-bin/webproc on ZTE ZXHN H108N R1A devices before ZTE.bhs.ZXHNH108NR1A.k_PE allows remote attackers to read arbitrary files via a full pathname in the getpage parameter.

ZTE ZXHN H108N R1A devices before ZTE.bhs.ZXHNH108NR1A.k_PE have a hardcoded password of root for the root account, which allows remote attackers to obtain administrative access via a TELNET session.

Cross-site scripting (XSS) vulnerability in cgi-bin/webproc on ZTE ZXHN H108N R1A devices before ZTE.bhs.ZXHNH108NR1A.k_PE allows remote attackers to inject arbitrary web script or HTML via the errorpage parameter.

ZTE ZXHN H108N R1A devices before ZTE.bhs.ZXHNH108NR1A.k_PE and ZXV10 W300 devices W300V1.0.0f_ER1_PE allow remote authenticated users to bypass intended access restrictions, and discover credentials and keys, by reading the configuration file, a different vulnerability than CVE-2015-7248.

Some ZTE products have CSRF vulnerability. Because some pages lack CSRF random value verification, attackers could perform illegal authorization operations by constructing messages.This affects: ZXHN H168N V3.5.0_EG1T5_TE, V2.5.5, ZXHN H108N V2.5.5_BTMT1

All versions up to V2.5.0_EG1T5_TED of ZTE ZXHN H108N product are impacted by an information leak vulnerability. An attacker could exploit the vulnerability to obtain sensitive information and perform unauthorized operations.