Vulnerability Details : CVE-2021-21559
Dell EMC NetWorker, versions 18.x, 19.1.x, 19.2.x 19.3.x, 19.4, and 19.4.0.1 contain an Improper Certificate Validation vulnerability in the client (NetWorker Management Console) components which uses SSL encrypted connection in order to communicate with the application server. An unauthenticated attacker in the same network collision domain as the NetWorker Management Console client could potentially exploit this vulnerability to perform man-in-the-middle attacks to intercept and tamper the traffic between the client and the application server.
Products affected by CVE-2021-21559
- cpe:2.3:a:dell:emc_networker:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-21559
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 7 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-21559
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
2.9
|
LOW | AV:A/AC:M/Au:N/C:N/I:P/A:N |
5.5
|
2.9
|
NIST | |
|
5.3
|
MEDIUM | CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N |
1.6
|
3.6
|
NIST | |
|
7.1
|
HIGH | CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H |
1.2
|
5.9
|
Dell |
CWE ids for CVE-2021-21559
-
The product does not validate, or incorrectly validates, a certificate.Assigned by:
- nvd@nist.gov (Primary)
- security_alert@emc.com (Secondary)
References for CVE-2021-21559
-
https://www.dell.com/support/kbdoc/en-us/000186638/dsa-2021-104-dell-emc-networker-security-update-for-multiple-vulnerabilities
Access DeniedPatch;Vendor Advisory
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