5.9

CVE-2019-15802

Exploit

An issue was discovered on Zyxel GS1900 devices with firmware before 2.50(AAHH.0)C0. The firmware hashes and encrypts passwords using a hardcoded cryptographic key in sal_util_str_encrypt() in libsal.so.0.0. The parameters (salt, IV, and key data) are used to encrypt and decrypt all passwords using AES256 in CBC mode. With the parameters known, all previously encrypted passwords can be decrypted. This includes the passwords that are part of configuration backups or otherwise embedded as part of the firmware.

Daten sind bereitgestellt durch National Vulnerability Database (NVD)
ZyxelGs1900-8 Firmware Version < 2.50\(aahh.0\)c0
   ZyxelGs1900-8 Version-
ZyxelGs1900-8hp Firmware Version < 2.50\(aahi.0\)c0
   ZyxelGs1900-8hp Version-
ZyxelGs1900-10hp Firmware Version < 2.50\(aazi.0\)c0
   ZyxelGs1900-10hp Version-
ZyxelGs1900-16 Firmware Version < 2.50\(aahj.0\)c0
   ZyxelGs1900-16 Version-
ZyxelGs1900-24e Firmware Version < 2.50\(aahk.0\)c0
   ZyxelGs1900-24e Version-
ZyxelGs1900-24 Firmware Version < 2.50\(aahl.0\)c0
   ZyxelGs1900-24 Version-
ZyxelGs1900-24hp Firmware Version < 2.50\(aahm.0\)c0
   ZyxelGs1900-24hp Version-
ZyxelGs1900-48 Firmware Version < 2.50\(aahn.0\)c0
   ZyxelGs1900-48 Version-
ZyxelGs1900-48hp Firmware Version < 2.50\(aaho.0\)c0
   ZyxelGs1900-48hp Version-
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.29% 0.491
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.9 2.2 3.6
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
nvd@nist.gov 4.3 8.6 2.9
AV:N/AC:M/Au:N/C:P/I:N/A:N
CWE-798 Use of Hard-coded Credentials

The product contains hard-coded credentials, such as a password or cryptographic key.