Overview
- Description
- A vulnerability exists in the FTP server of the Zyxel AX7501-B0 firmware prior to V5.17(ABPC.3)C0, which processes symbolic links on external storage media. A local authenticated attacker with administrator privileges could abuse this vulnerability to access the root file system by creating a symbolic link on external storage media, such as a USB flash drive, and then logging into the FTP server on a vulnerable device.
- Source
- security@zyxel.com.tw
- NVD status
- Analyzed
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 4.4
- Impact score
- 3.6
- Exploitability score
- 0.8
- Vector string
- CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
- Severity
- MEDIUM
Social media
- Hype score
- Not currently trending
Configurations
[ { "nodes": [ { "negate": false, "cpeMatch": [ { "criteria": "cpe:2.3:o:zyxel:ax7501-b0_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2052D047-7D2B-419F-BB98-110144616D7F", "versionEndExcluding": "5.17\\(abpc.3\\)c0" } ], "operator": "OR" }, { "negate": false, "cpeMatch": [ { "criteria": "cpe:2.3:h:zyxel:ax7501-b0:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "78473083-F702-4B81-AAA0-B66A0984FF6B" } ], "operator": "OR" } ], "operator": "AND" } ]