Vulnerability Details : CVE-2021-27852
Deserialization of Untrusted Data vulnerability in CheckboxWeb.dll of Checkbox Survey allows an unauthenticated remote attacker to execute arbitrary code. This issue affects: Checkbox Survey versions prior to 7.
Vulnerability category: Execute code
Products affected by CVE-2021-27852
- cpe:2.3:a:checkbox:survey:*:*:*:*:*:*:*:*
CVE-2021-27852 is in the CISA Known Exploited Vulnerabilities Catalog
CISA vulnerability name:
Checkbox Survey Deserialization of Untrusted Data Vulnerability
CISA required action:
Versions 6 and earlier for this product are end-of-life and must be removed from agency networks. Versions 7 and later are not considered vulnerable.
CISA description:
Deserialization of Untrusted Data vulnerability in CheckboxWeb.dll of Checkbox Survey allows an unauthenticated remote attacker to execute arbitrary code.
Notes:
https://nvd.nist.gov/vuln/detail/CVE-2021-27852
Added on
2022-04-11
Action due date
2022-05-02
Exploit prediction scoring system (EPSS) score for CVE-2021-27852
1.56%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 87 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-27852
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
CERT/CC | |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2021-27852
-
The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.Assigned by:
- cret@cert.org (Secondary)
- nvd@nist.gov (Primary)
References for CVE-2021-27852
-
https://www.kb.cert.org/vuls/id/706695
VU#706695 - Checkbox Survey insecurely deserializes ASP.NET View State dataThird Party Advisory;US Government Resource
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