PT-2020-5303 · D Link · D-Link Dsl-2640B

Cristofaro Mune · Published 2020-03-30 · Updated 2020-04-28 · CVE-2020-9276

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

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

Name of the Vulnerable Software and Affected Versions D-Link DSL-2640B versions prior to the fixed version

Description The issue is caused by a stack-based buffer overflow in the do cgi() function, which processes CGI requests supplied to the device's web server. This can be exploited remotely, allowing an attacker to impact the confidentiality, integrity, and availability of protected information. Unauthenticated exploitation is possible.

Recommendations For D-Link DSL-2640B versions prior to the fixed version, update to a version that includes a fix for the buffer overflow vulnerability in the do cgi() function. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

BDU:2021-00065

CVE-2020-9276

Affected Products

D-Link Dsl-2640B

References · 11

• 🔥 https://raelize.com/posts/d-link-dsl-2640b-security-advisories · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2020-9276 · Security Note
• https://osv.dev/vulnerability/CVE-2020-9276 · Vendor Advisory
• https://dlink.com/en/security-bulletin · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-00065 · Security Note
• https://t.me/secharvester/8892 · Telegram Post
• https://raelize.com/advisories/CVE-2020-9276_D-Link-DSL-2640B_do_cgi-buffer-overflow_v1.0.txt · Note
• https://t.me/malwr/2992 · Telegram Post
• https://t.me/rnetsec/11915 · Telegram Post
• https://cxsecurity.com/cveshow/CVE-2020-9276 · Note
• https://t.me/cvenotify/2949 · Telegram Post