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MitreCVE-2021-26473

HistoryJun 08, 2021 - 7:15 p.m.

CVE-2021-26473

2021-06-0819:15:08

CWE-434

mitre

web.nvd.nist.gov

cve-2021-26473

vembubdr

vembuoffsitedr

http api

file write

remote execution

security vulnerability

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

9.3

Confidence

High

EPSS

0.003

Percentile

69.2%

JSON

In VembuBDR before 4.2.0.1 and VembuOffsiteDR before 4.2.0.1 the http API located at /sgwebservice_o.php action logFilePath allows an attacker to write arbitrary files in the context of the web server process. These files can then be executed remotely by calling the file via the web server.

Affected configurations

Nvd

Node

vembubdr_suiteRange<4.2.0.1

vembuoffsite_drRange<4.2.0.1

VendorProductVersionCPE
vembubdr_suite*cpe:2.3:a:vembu:bdr_suite:*:*:*:*:*:*:*:*
vembuoffsite_dr*cpe:2.3:a:vembu:offsite_dr:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
vembu	bdr_suite	*	cpe:2.3:a:vembu:bdr_suite::::::::
vembu	offsite_dr	*	cpe:2.3:a:vembu:offsite_dr::::::::

References

csirt.divd.nl/2021/05/11/Vembu-zero-days/

csirt.divd.nl/cases/DIVD-2020-00011/

csirt.divd.nl/cves/CVE-2021-26473/

www.wbsec.nl/vembu

Social References

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

9.3

Confidence

High

EPSS

0.003

Percentile

69.2%

JSON

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