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cve[email protected]CVE-2021-34599
HistoryDec 01, 2021 - 9:15 a.m.

CVE-2021-34599

2021-12-0109:15:06
CWE-295
web.nvd.nist.gov
14
2
codesys
git
cve
cybersecurity
vulnerability
certificate validation
man-in-the-middle attack

5.8 Medium

CVSS2

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

7.4 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

0.001 Low

EPSS

Percentile

39.4%

Affected versions of CODESYS Git in Versions prior to V1.1.0.0 lack certificate validation in HTTPS handshakes. CODESYS Git does not implement certificate validation by default, so it does not verify that the server provides a valid and trusted HTTPS certificate. Since the certificate of the server to which the connection is made is not properly verified, the server connection is vulnerable to a man-in-the-middle attack.

Affected configurations

NVD
Node
codesysgitRange<1.1.0.0
AND
codesysdevelopment_systemRange<3.5.17.0
CPENameOperatorVersion
codesys:gitcodesys gitlt1.1.0.0

CNA Affected

[
  {
    "product": "CODESYS Git",
    "vendor": "CODESYS",
    "versions": [
      {
        "lessThan": "V1.1.0.0",
        "status": "affected",
        "version": "CODESYS Git",
        "versionType": "custom"
      }
    ]
  }
]

Social References

More

5.8 Medium

CVSS2

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

7.4 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

0.001 Low

EPSS

Percentile

39.4%

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