PT-2020-6291 · D Link · D-Link Dir-825

Published 2020-04-12 · Updated 2025-02-06 · CVE-2020-29557

Positive Technologies (AI Summary)

CVSS v3.1

10

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions D-Link DIR-825 R1 devices through 3.0.1 before 2020-11-20 D-Link DIR-825/GF D-Link DIR-825/A/D1 D-Link DIR-825/AC/E1A

Description An issue was discovered in the web interface of D-Link DIR-825 devices, allowing attackers to achieve pre-authentication remote code execution due to a buffer overflow. The vulnerability is related to a lack of mechanism for checking the size of copied data. Exploitation of the vulnerability may allow a remote attacker to execute arbitrary code or cause a denial of service.

Recommendations For D-Link DIR-825 R1 devices through 3.0.1 before 2020-11-20, consider disabling the web interface until a patch is available. For D-Link DIR-825/GF, D-Link DIR-825/A/D1, and D-Link DIR-825/AC/E1A, restrict access to the web interface to minimize the risk of exploitation. As a temporary workaround, avoid using the web interface for remote management until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Buffer Overflow

Weakness Enumeration

CWE-120

CWE-119

Related Identifiers

BDU:2021-04015

CVE-2020-29557

Affected Products

D-Link Dir-825

References · 9

• 🔥 https://shaqed.github.io/dlink · Exploit
• https://dlink.ru/ru/download2/5/19/2354/441 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-04015 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2020-29557 · Security Note
• https://osv.dev/vulnerability/CVE-2020-29557 · Vendor Advisory
• https://t.me/cvenotify/110240 · Telegram Post
• https://cisa.gov/sites/default/files/csv/known_exploited_vulnerabilities.csv · Note
• https://t.me/cibsecurity/22855 · Telegram Post
• https://cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-29557 · Note