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JpcertCVE-2021-20649

HistoryFeb 12, 2021 - 7:15 a.m.

CVE-2021-20649

2021-02-1207:15:15

CWE-295

jpcert

web.nvd.nist.gov

cve-2021-20649

elecom

wrc-300febk-s

certificate validation

vulnerability

man-in-the-middle attack

os command execution

CVSS2

5.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:P/A:N

CVSS3

4.8

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

AI Score

5.9

Confidence

High

EPSS

0.001

Percentile

28.7%

JSON

ELECOM WRC-300FEBK-S contains an improper certificate validation vulnerability. Via a man-in-the-middle attack, an attacker may alter the communication response. As a result, an arbitrary OS command may be executed on the affected device.

Affected configurations

Nvd

Node

elecomwrc-300febk-s_firmwareMatch-

AND

elecomwrc-300febk-sMatch-

VendorProductVersionCPE
elecomwrc-300febk-s_firmware-cpe:2.3:o:elecom:wrc-300febk-s_firmware:-:*:*:*:*:*:*:*
elecomwrc-300febk-s-cpe:2.3:h:elecom:wrc-300febk-s:-:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
elecom	wrc-300febk-s_firmware	-	cpe:2.3:o:elecom:wrc-300febk-s_firmware:-:::::::*
elecom	wrc-300febk-s	-	cpe:2.3:h:elecom:wrc-300febk-s:-:::::::*

CNA Affected

[
  {
    "product": "WRC-300FEBK-S",
    "vendor": "ELECOM CO.,LTD.",
    "versions": [
      {
        "status": "affected",
        "version": "WRC-300FEBK-S"
      }
    ]
  }
]

References

jvn.jp/en/jp/JVN47580234/index.html

www.elecom.co.jp/news/security/20210126-01/

Social References

CVSS2

5.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:P/A:N

CVSS3

4.8

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

AI Score

5.9

Confidence

High

EPSS

0.001

Percentile

28.7%

JSON

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