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Least-privilege violation in the D-Link DIR-823G router (firmware 1.0.2B05_20181207) stems from insecure configuration of the Boa web server via /etc/boa/boa.conf, allowing an authenticated remote attacker to abuse over-broad privileges to compromise confidentiality, integrity, and availability. Publicly available exploit code exists, but the CVSS 4.0 vector rates attack complexity high (AC:H) and vendor guidance notes exploitation is difficult; there is no public exploit identified as actively exploited (not in CISA KEV). EPSS data was not supplied, but the low-privilege network vector combined with full CIA impact makes this a meaningful risk on exposed devices.
Least privilege violation in D-Link DIR-823G firmware version 1.0.2B05 exposes the vsftpd FTP daemon configuration file (/etc/vsftpd.conf) to manipulation by network-accessible, low-privileged authenticated users, enabling unauthorized modification of FTP service behavior. The CVSS vector (AV:N/AC:L/PR:L/UI:N/I:L) confirms this is remotely exploitable with low complexity by any authenticated user, resulting in limited integrity impact. A publicly available proof-of-concept exploit has been released per VulDB reporting (E:P), though no active exploitation has been confirmed in CISA KEV at this time.
Least-privilege violation in the D-Link DIR-823G router (firmware 1.0.2B05_20181207) stems from insecure configuration of the Boa web server via /etc/boa/boa.conf, allowing an authenticated remote attacker to abuse over-broad privileges to compromise confidentiality, integrity, and availability. Publicly available exploit code exists, but the CVSS 4.0 vector rates attack complexity high (AC:H) and vendor guidance notes exploitation is difficult; there is no public exploit identified as actively exploited (not in CISA KEV). EPSS data was not supplied, but the low-privilege network vector combined with full CIA impact makes this a meaningful risk on exposed devices.
Least privilege violation in D-Link DIR-823G firmware version 1.0.2B05 exposes the vsftpd FTP daemon configuration file (/etc/vsftpd.conf) to manipulation by network-accessible, low-privileged authenticated users, enabling unauthorized modification of FTP service behavior. The CVSS vector (AV:N/AC:L/PR:L/UI:N/I:L) confirms this is remotely exploitable with low complexity by any authenticated user, resulting in limited integrity impact. A publicly available proof-of-concept exploit has been released per VulDB reporting (E:P), though no active exploitation has been confirmed in CISA KEV at this time.