CVE-2021-26473
Last modified
CVE-2021-26473 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 1.76% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Vembu | Bdr Suite | < 4.2.0.1 |
| Vembu | Offsite Dr | < 4.2.0.1 |
References
- https://csirt.divd.nl/2021/05/11/Vembu-zero-days/Third Party Advisory
- https://csirt.divd.nl/cases/DIVD-2020-00011/Third Party Advisory
- https://csirt.divd.nl/cves/CVE-2021-26473/Third Party Advisory
- https://www.wbsec.nl/vembuBroken Link, Third Party Advisory
- https://csirt.divd.nl/2021/05/11/Vembu-zero-days/Third Party Advisory
- https://csirt.divd.nl/cases/DIVD-2020-00011/Third Party Advisory
- https://csirt.divd.nl/cves/CVE-2021-26473/Third Party Advisory
- https://www.wbsec.nl/vembuBroken Link, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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