CVE-2019-12583 : Missing Access Control in the "Free Time" component of several Zyxel UAG, USG, a

Missing Access Control in the "Free Time" component of several Zyxel UAG, USG, and ZyWall devices allows a remote attacker to generate guest accounts by directly accessing the account generator. This can lead to unauthorised network access or Denial of Service.

Published 2019-06-27 14:15:10

Updated 2020-08-24 17:37:01

Source MITRE

View at NVD, CVE.org

Vulnerability category: Denial of service

Products affected by CVE-2019-12583

Zyxel » Zywall 110 Firmware
Versions up to, including, (<=) 4.33\(aaaa.0\)c0
cpe:2.3:o:zyxel:zywall_110_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Zywall 110 » Version: N/A
Zyxel » Zywall 1100 Firmware
Versions up to, including, (<=) 4.33\(aaac.0\)c0
cpe:2.3:o:zyxel:zywall_1100_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Zywall 1100 » Version: N/A
Zyxel » Zywall 310 Firmware
Versions up to, including, (<=) 4.33\(aaab.0\)c0
cpe:2.3:o:zyxel:zywall_310_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Zywall 310 » Version: N/A
Zyxel » Usg110 Firmware
Versions up to, including, (<=) 4.33\(aaph.0\)c0
cpe:2.3:o:zyxel:usg110_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Usg110 » Version: N/A
Zyxel » Usg210 Firmware
Versions up to, including, (<=) 4.33\(aapi.0\)c0
cpe:2.3:o:zyxel:usg210_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Usg210 » Version: N/A
Zyxel » Usg310 Firmware
Versions up to, including, (<=) 4.33\(aapj.0\)c0
cpe:2.3:o:zyxel:usg310_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Usg310 » Version: N/A
Zyxel » Usg1100 Firmware
Versions up to, including, (<=) 4.33\(aapk.0\)c0
cpe:2.3:o:zyxel:usg1100_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Usg1100 » Version: N/A
Zyxel » Usg1900 Firmware
Versions up to, including, (<=) 4.33\(aapl.0\)c0
cpe:2.3:o:zyxel:usg1900_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Usg1900 » Version: N/A
Zyxel » Usg2200-vpn Firmware
Versions up to, including, (<=) 4.33\(abae.0\)c0
cpe:2.3:o:zyxel:usg2200-vpn_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Usg2200-vpn » Version: N/A
Zyxel » Uag2100 Firmware
Versions up to, including, (<=) 4.18\(aaiz.1\)c0
cpe:2.3:o:zyxel:uag2100_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Uag2100 » Version: N/A
Zyxel » Uag4100 Firmware
Versions up to, including, (<=) 4.18\(aatd.1\)c0
cpe:2.3:o:zyxel:uag4100_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Uag4100 » Version: N/A
Zyxel » Uag5100 Firmware
Versions up to, including, (<=) 4.18\(aapn.1\)c0
cpe:2.3:o:zyxel:uag5100_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Uag5100 » Version: N/A
Zyxel » Zywall Vpn100 Firmware
Versions up to, including, (<=) 10.02\(abfv.0\)c0
cpe:2.3:o:zyxel:zywall_vpn100_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Zywall Vpn100 » Version: N/A
Zyxel » Zywall Vpn300 Firmware
Versions up to, including, (<=) 10.02\(abfc.0\)c0
cpe:2.3:o:zyxel:zywall_vpn300_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Zywall Vpn300 » Version: N/A

Exploit prediction scoring system (EPSS) score for CVE-2019-12583

EPSS FAQ

0.48%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 73 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2019-12583

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
6.4	MEDIUM	AV:N/AC:L/Au:N/C:N/I:P/A:P	10.0	4.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: Partial Availability Impact: Partial
9.1	CRITICAL	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H	3.9	5.2	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: High Availability: High

CWE ids for CVE-2019-12583

CWE-425 Direct Request ('Forced Browsing')

The web application does not adequately enforce appropriate authorization on all restricted URLs, scripts, or files.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2019-12583

https://www.zyxel.com/support/vulnerabilities-related-to-the-Free-Time-feature.shtml

Zyxel security advisory for vulnerabilities related to the Free Time feature | Zyxel
Patch;Vendor Advisory

CVEs referencing this url
https://n-thumann.de/blog/zyxel-gateways-missing-access-control-in-account-generator-xss/

Zyxel Gateways: Missing Access Control in Account Generator & XSS
Exploit;Third Party Advisory

CVEs referencing this url

Jump to

Vulnerability Details : CVE-2019-12583

Products affected by CVE-2019-12583

Exploit prediction scoring system (EPSS) score for CVE-2019-12583

CVSS scores for CVE-2019-12583

CWE ids for CVE-2019-12583

References for CVE-2019-12583