Vulnerability Details : CVE-2021-26620
An improper authentication vulnerability leading to information leakage was discovered in iptime NAS2dual. Remote attackers are able to steal important information in the server by exploiting vulnerabilities such as insufficient authentication when accessing the shared folder and changing user’s passwords.
Vulnerability category: BypassGain privilege
Products affected by CVE-2021-26620
- cpe:2.3:o:iptime:nas-i_firmware:*:*:*:*:*:windows:*:*
- cpe:2.3:o:iptime:nas-ii_firmware:*:*:*:*:*:windows:*:*
- cpe:2.3:o:iptime:nas-iie_firmware:*:*:*:*:*:windows:*:*
- cpe:2.3:o:iptime:nas101_firmware:*:*:*:*:*:windows:*:*
- cpe:2.3:o:iptime:nas1dual_firmware:*:*:*:*:*:windows:*:*
- cpe:2.3:o:iptime:nas2dual_firmware:*:*:*:*:*:windows:*:*
- cpe:2.3:o:iptime:nas3_firmware:*:*:*:*:*:windows:*:*
- cpe:2.3:o:iptime:nas4_firmware:*:*:*:*:*:windows:*:*
- cpe:2.3:o:iptime:nas4dual_firmware:*:*:*:*:*:windows:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-26620
0.61%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 68 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-26620
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:P/I:N/A:N |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
3.9
|
3.6
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
3.9
|
3.6
|
KrCERT/CC |
CWE ids for CVE-2021-26620
-
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.Assigned by:
- nvd@nist.gov (Primary)
- vuln@krcert.or.kr (Secondary)
References for CVE-2021-26620
-
https://www.krcert.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=66578
Security Advisory | KrCERT/CC - KISA 인터넷 보호나라&KrCERTThird Party Advisory
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