VulnerabilityModified
CVE-2021-26471
Using this command argument an unauthenticated attacker can execute arbitrary shell commands.
CRITICAL 9.8EPSS 2.26%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.26%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In VembuBDR before 4.2.0.1 and VembuOffsiteDR before 4.2.0.1, the http API located at /sgwebservice_o.php accepts a command argument. Using this command argument an unauthenticated attacker can execute arbitrary shell commands.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.26% probability · 82th percentile
- CISA KEV
- Not listed
- Affected
- vembu/bdr suite · vembu/offsite dr
- Source
- cve@mitre.org
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-2021-26471/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-2021-26471/Third Party Advisory
- https://www.wbsec.nl/vembuBroken Link, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.