Vulnerability Details : CVE-2021-39243
Potential exploit
Cross-Site Request Forgery (CSRF) exists on Altus Nexto, Nexto Xpress, and Hadron Xtorm devices via any CGI endpoint. This affects Nexto NX3003 1.8.11.0, Nexto NX3004 1.8.11.0, Nexto NX3005 1.8.11.0, Nexto NX3010 1.8.3.0, Nexto NX3020 1.8.3.0, Nexto NX3030 1.8.3.0, Nexto NX5100 1.8.11.0, Nexto NX5101 1.8.11.0, Nexto NX5110 1.1.2.8, Nexto NX5210 1.1.2.8, Nexto Xpress XP300 1.8.11.0, Nexto Xpress XP315 1.8.11.0, Nexto Xpress XP325 1.8.11.0, Nexto Xpress XP340 1.8.11.0, and Hadron Xtorm HX3040 1.7.58.0.
Vulnerability category: Cross-site request forgery (CSRF)
Products affected by CVE-2021-39243
- cpe:2.3:o:altus:nexto_nx3003_firmware:1.8.11.0:*:*:*:*:*:*:*
- cpe:2.3:o:altus:nexto_nx3004_firmware:1.8.11.0:*:*:*:*:*:*:*
- cpe:2.3:o:altus:nexto_nx3005_firmware:1.8.11.0:*:*:*:*:*:*:*
- cpe:2.3:o:altus:nexto_nx3010_firmware:1.8.3.0:*:*:*:*:*:*:*
- cpe:2.3:o:altus:nexto_nx3020_firmware:1.8.3.0:*:*:*:*:*:*:*
- cpe:2.3:o:altus:nexto_nx3030_firmware:1.8.3.0:*:*:*:*:*:*:*
- cpe:2.3:o:altus:nexto_nx5100_firmware:1.8.11.0:*:*:*:*:*:*:*
- cpe:2.3:o:altus:nexto_nx5101_firmware:1.8.11.0:*:*:*:*:*:*:*
- cpe:2.3:o:altus:nexto_nx5110_firmware:1.1.2.8:*:*:*:*:*:*:*
- cpe:2.3:o:altus:nexto_nx5210_firmware:1.1.2.8:*:*:*:*:*:*:*
- cpe:2.3:o:altus:nexto_xpress_xp300_firmware:1.8.11.0:*:*:*:*:*:*:*
- cpe:2.3:o:altus:nexto_xpress_xp315_firmware:1.8.11.0:*:*:*:*:*:*:*
- cpe:2.3:o:altus:nexto_xpress_xp325_firmware:1.8.11.0:*:*:*:*:*:*:*
- cpe:2.3:o:altus:nexto_xpress_xp340_firmware:1.8.11.0:*:*:*:*:*:*:*
- cpe:2.3:o:altus:hadron_xtorm_hx3040_firmware:1.7.58.0:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-39243
0.12%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 28 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-39243
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:P/A:N |
8.6
|
2.9
|
NIST | |
|
6.5
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N |
2.8
|
3.6
|
NIST |
CWE ids for CVE-2021-39243
-
The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-39243
-
https://www.altus.com.br/
Altus Sistemas de Automação | AltusVendor Advisory
-
http://seclists.org/fulldisclosure/2021/Aug/21
Full Disclosure: SEC Consult SA-20210819-0 :: Multiple critical vulnerabilities in Altus Nexto and Hadron seriesExploit;Mailing List;Third Party Advisory
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