CVE-2020-13365

CWE-287 — Improper AuthenticationCWE-269 — Improper Privilege Management3 documents3 sources
Severity
8.8HIGH
EPSS
0.1%
top 67.89%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
Zyxel Nas326 FirmwareZyxel Nas520 FirmwareZyxel Nas540 Firmware+1 more
Timeline
PublishedAug 6
Latest updateMay 24

Description

Certain Zyxel products have a locally accessible binary that allows a non-root user to generate a password for an undocumented user account that can be used for a TELNET session as root. This affects NAS520 V5.21(AASZ.4)C0, V5.21(AASZ.0)C0, V5.11(AASZ.3)C0, and V5.11(AASZ.0)C0; NAS542 V5.11(ABAG.0)C0, V5.20(ABAG.1)C0, and V5.21(ABAG.3)C0; NSA325 v2_V4.81(AALS.0)C0 and V4.81(AAAJ.1)C0; NSA310 4.22(AFK.0)C0 and 4.22(AFK.1)C0; NAS326 V5.21(AAZF.8)C0, V5.11(AAZF.4)C0, V5.11(AAZF.2)C0, and V5.11(AAZF…

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 2.8 | Impact: 5.9

Affected Packages4 packages

▶NVDzyxel/nas326_firmware< v5.21\(aazf.9\)c0
▶NVDzyxel/nas520_firmware< v5.21\(aasz.5\)c0
▶NVDzyxel/nas540_firmware< v5.21\(aatb.6\)c0
▶NVDzyxel/nas542_firmware< v5.21\(abag.6\)c0

🔴Vulnerability Details

2
GHSA
GHSA-355p-v284-v3xp: Certain Zyxel products have a locally accessible binary that allows a non-root user to generate a password for an undocumented user account that can b↗2022-05-24
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CVEList
CVE-2020-13365: Certain Zyxel products have a locally accessible binary that allows a non-root user to generate a password for an undocumented user account that can b↗2020-08-06
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CVE-2020-13365 (HIGH CVSS 8.8) | Certain Zyxel products have a local | cvebase.io