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SolarWindsCVE-2021-35223

HistoryAug 31, 2021 - 4:15 p.m.

CVE-2021-35223

2021-08-3116:15:07

CWE-20

SolarWinds

web.nvd.nist.gov

serv-u file server

auditing

user login failures

remote code execution

cve-2021-35223

nvd

CVSS2

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:S/C:P/I:P/A:P

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

Confidence

High

EPSS

0.006

Percentile

77.6%

JSON

The Serv-U File Server allows for events such as user login failures to be audited by executing a command. This command can be supplied with parameters that can take the form of user string variables, allowing remote code execution.

Affected configurations

Nvd

Node

solarwindsserv-uRange<15.2.4

VendorProductVersionCPE
solarwindsserv-u*cpe:2.3:a:solarwinds:serv-u:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
solarwinds	serv-u	*	cpe:2.3:a:solarwinds:serv-u::::::::

CNA Affected

[
  {
    "product": "Serv-U",
    "vendor": "SolarWinds",
    "versions": [
      {
        "lessThanOrEqual": "15.2.4 ",
        "status": "affected",
        "version": "15.2.3 and previous versions",
        "versionType": "custom"
      }
    ]
  }
]

References

documentation.solarwinds.com/en/success_center/servu/content/release_notes/servu_15-2-4_release_notes.htm

support.solarwinds.com/SuccessCenter/s/article/Execute-Command-Function-Allows-Remote-Code-Execution-RCE-Vulnerability-CVE-2021-35223?language=en_US

www.solarwinds.com/trust-center/security-advisories/cve-2021-35223

CVSS2

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:S/C:P/I:P/A:P

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

Confidence

High

EPSS

0.006

Percentile

77.6%

JSON

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