PT-2020-2912 · D Link · D-Link Dir-865L

Davila Loranca + 2 · Published 2020-06-03 · Updated 2021-12-13 · CVE-2020-13784

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:C/I:N/A:N

Name of the Vulnerable Software and Affected Versions D-Link DIR-865L Ax version 1.20B01 Beta

Description The issue is related to a predictable seed in a Pseudo-Random Number Generator, specifically in the get random string function of the D-Link DIR-865L router's firmware. This is caused by errors in the code of the pseudo-random number generator. Exploitation of this issue may allow a remote attacker to disclose protected information.

Recommendations For D-Link DIR-865L Ax version 1.20B01 Beta, consider restricting access to the get random string function until a patch is available. As a temporary workaround, avoid using the pseudo-random number generator for sensitive operations. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Weakness Enumeration

CWE-335

CWE-338

Related Identifiers

BDU:2020-03069

CVE-2020-13784

Affected Products

D-Link Dir-865L

References · 6

• 🔥 https://unit42.paloaltonetworks.com/6-new-d-link-vulnerabilities-found-on-home-routers · Exploit
• https://bdu.fstec.ru/vul/2020-03069 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2020-13784 · Security Note
• https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10174 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-13784 · Vendor Advisory
• https://t.me/cybersecuritytechnologies/1270 · Telegram Post