PT-2020-6822 · Zyxel · Zyxel Cloudcnm Secumanager

Alexandre Torres + 1 · Published 2020-03-13 · Updated 2022-10-27 · CVE-2020-15340

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:C/I:N/A:N

Name of the Vulnerable Software and Affected Versions Zyxel CloudCNM SecuManager versions 3.1.0 through 3.1.1

Description The issue is related to the implementation of the CPE WAN Management Protocol (TR-069) in the Zyxel CloudCNM SecuManager software, which uses hardcoded credentials when handling the SSH key located at opt/axess/AXAssets/default axess/axess/TR69/Handlers/turbolink/sshkeys/id rsa. This could allow a remote attacker to gain unauthorized access to protected information.

Recommendations For versions 3.1.0 and 3.1.1, consider disabling the use of the hardcoded SSH key id rsa in the opt/axess/AXAssets/default axess/axess/TR69/Handlers/turbolink/sshkeys directory until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Missing Encryption of Sensitive Data

Weakness Enumeration

CWE-311

Related Identifiers

BDU:2022-07419

CVE-2020-15340

Affected Products

Zyxel Cloudcnm Secumanager

References · 5

• 🔥 https://pierrekim.github.io/blog/2020-03-09-zyxel-secumanager-0day-vulnerabilities.html · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2020-15340 · Security Note
• https://bdu.fstec.ru/vul/2022-07419 · Security Note
• https://zyxel.com/support/vulnerabilities-of-CloudCNM-SecuManager.shtml · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-15340 · Vendor Advisory