CVE-2021-20590
mitsubishi got vnc server authentication bypass
Description
Improper authentication vulnerability in GOT2000 series GT27 model VNC server versions 01.39.010 and prior, GOT2000 series GT25 model VNC server versions 01.39.010 and prior, GOT2000 series GT21 model GT2107-WTBD VNC server versions 01.40.000 and prior, GOT2000 series GT21 model GT2107-WTSD VNC server versions 01.40.000 and prior, GOT SIMPLE series GS21 model GS2110-WTBD-N VNC server versions 01.40.000 and prior and GOT SIMPLE series GS21 model GS2107-WTBD-N VNC server versions 01.40.000 and prior allows a remote unauthenticated attacker to gain unauthorized access via specially crafted packets when the "VNC server" function is used.
INFO
Published Date :
April 22, 2021, 7:15 p.m.
Last Modified :
Nov. 7, 2023, 3:29 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
Affected Products
The following products are affected by CVE-2021-20590
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-20590.
| URL | Resource |
|---|---|
| https://jvn.jp/vu/JVNVU97615777/index.html | |
| https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-001_en.pdf |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-20590 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-20590 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Source Update by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Changed Source JPCERT/CC Mitsubishi Electric Corporation -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Added Reference Mitsubishi Electric Corporation https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-001_en.pdf [No types assigned] Added Reference Mitsubishi Electric Corporation https://jvn.jp/vu/JVNVU97615777/index.html [No types assigned] Removed Reference JPCERT/CC https://jvn.jp/vu/JVNVU97615777/index.html Removed Reference JPCERT/CC https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-001_en.pdf -
Modified Analysis by [email protected]
May. 12, 2022
Action Type Old Value New Value Removed CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:P/A:N) Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:N/I:P/A:N) Changed Reference Type https://jvn.jp/vu/JVNVU97615777/index.html Third Party Advisory https://jvn.jp/vu/JVNVU97615777/index.html Mitigation, Third Party Advisory Changed Reference Type https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-001_en.pdf Vendor Advisory https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-001_en.pdf Mitigation, Vendor Advisory Changed CPE Configuration AND OR *cpe:2.3:o:mitsubishielectric:got2000_gt27_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishielectric:got2000_gt27:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:mitsubishielectric:got2000_gt27_firmware:*:*:*:*:*:*:*:* versions up to (including) 01.39.010 OR cpe:2.3:h:mitsubishielectric:got2000_gt27:-:*:*:*:*:*:*:* Changed CPE Configuration AND OR *cpe:2.3:o:mitsubishielectric:got2000_gt25_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishielectric:got2000_gt25:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:mitsubishielectric:got2000_gt25_firmware:*:*:*:*:*:*:*:* versions up to (including) 01.39.010 OR cpe:2.3:h:mitsubishielectric:got2000_gt25:-:*:*:*:*:*:*:* Changed CPE Configuration AND OR *cpe:2.3:o:mitsubishielectric:gt2107-wtbd_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishielectric:gt2107-wtbd:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:mitsubishielectric:gt2107-wtbd_firmware:*:*:*:*:*:*:*:* versions up to (including) 01.40.000 OR cpe:2.3:h:mitsubishielectric:gt2107-wtbd:-:*:*:*:*:*:*:* Changed CPE Configuration AND OR *cpe:2.3:o:mitsubishielectric:gt2107-wtsd_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishielectric:gt2107-wtsd:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:mitsubishielectric:gt2107-wtsd_firmware:*:*:*:*:*:*:*:* versions up to (including) 01.40.000 OR cpe:2.3:h:mitsubishielectric:gt2107-wtsd:-:*:*:*:*:*:*:* Changed CPE Configuration AND OR *cpe:2.3:o:mitsubishielectric:gs2110-wtbd-n_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishielectric:gs2110-wtbd-n:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:mitsubishielectric:gs2110-wtbd-n_firmware:*:*:*:*:*:*:*:* versions up to (including) 01.40.000 OR cpe:2.3:h:mitsubishielectric:gs2110-wtbd-n:-:*:*:*:*:*:*:* Changed CPE Configuration AND OR *cpe:2.3:o:mitsubishielectric:gs2107-wtbd-n_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishielectric:gs2107-wtbd-n:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:mitsubishielectric:gs2107-wtbd-n_firmware:*:*:*:*:*:*:*:* versions up to (including) 01.40.000 OR cpe:2.3:h:mitsubishielectric:gs2107-wtbd-n:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Aug. 02, 2021
Action Type Old Value New Value Changed Description Improper authentication vulnerability in GOT2000 series GT27 model all versions, GOT2000 series GT25 model all versions, GOT2000 series GT21 model GT2107-WTBD all versions ,GOT2000 series GT21 model GT2107-WTSD all versions, GOT SIMPLE series GS21 model GS2110-WTBD-N all versions and GOT SIMPLE series GS21 model GS2107-WTBD-N all versions allows a remote unauthenticated attacker to gain unauthorized access via specially crafted packets when the "VNC server" function is used. Improper authentication vulnerability in GOT2000 series GT27 model VNC server versions 01.39.010 and prior, GOT2000 series GT25 model VNC server versions 01.39.010 and prior, GOT2000 series GT21 model GT2107-WTBD VNC server versions 01.40.000 and prior, GOT2000 series GT21 model GT2107-WTSD VNC server versions 01.40.000 and prior, GOT SIMPLE series GS21 model GS2110-WTBD-N VNC server versions 01.40.000 and prior and GOT SIMPLE series GS21 model GS2107-WTBD-N VNC server versions 01.40.000 and prior allows a remote unauthenticated attacker to gain unauthorized access via specially crafted packets when the "VNC server" function is used. -
Initial Analysis by [email protected]
May. 04, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:P/A:N) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Changed Reference Type https://jvn.jp/vu/JVNVU97615777/index.html No Types Assigned https://jvn.jp/vu/JVNVU97615777/index.html Third Party Advisory Changed Reference Type https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-001_en.pdf No Types Assigned https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-001_en.pdf Vendor Advisory Added CWE NIST CWE-287 Added CPE Configuration AND OR *cpe:2.3:o:mitsubishielectric:got2000_gt27_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishielectric:got2000_gt27:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:mitsubishielectric:got2000_gt25_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishielectric:got2000_gt25:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:mitsubishielectric:gt2107-wtbd_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishielectric:gt2107-wtbd:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:mitsubishielectric:gt2107-wtsd_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishielectric:gt2107-wtsd:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:mitsubishielectric:gs2110-wtbd-n_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishielectric:gs2110-wtbd-n:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:mitsubishielectric:gs2107-wtbd-n_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:mitsubishielectric:gs2107-wtbd-n:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-20590 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-20590
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.24 }} 0.01%
score
0.61553
percentile