PT-2020-17800 · Tonnet · Tonnet Tat-77 Series+1

Keniver Wang + 2 · Published 2020-02-27 · Updated 2021-07-21 · CVE-2020-3924

Positive Technologies (AI Summary)

CVSS v2.0

10

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions TONNET TAT-76 series (affected versions not specified) TONNET TAT-77 series (affected versions not specified)

Description The issue concerns the DVR firmware in TAT-76 and TAT-77 series of products, which do not properly verify patch files. This allows attackers to inject a specific command into a patch file, potentially gaining access to the system.

Recommendations For TONNET TAT-76 series, at the moment, there is no information about a newer version that contains a fix for this vulnerability. For TONNET TAT-77 series, at the moment, there is no information about a newer version that contains a fix for this vulnerability.

Command Injection

Weakness Enumeration

CWE-77

Related Identifiers

CVE-2020-3924

Affected Products

Tonnet Tat-76 Series

Tonnet Tat-77 Series

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2020-3924 · Security Note
• https://osv.dev/vulnerability/CVE-2020-3924 · Vendor Advisory
• https://tvn.twcert.org.tw/taiwanvn/TVN-201910004 · Note
• https://chtsecurity.com/news/4ef5eb3a-fdc3-4d78-8dd7-ec7213e2bbcf · Note