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Exploited vulnerability · CISA KEV

Is CVE-2019-7481 exploited? Yes: in CISA KEV since 3 Nov 2021

Gociux · SonicWall SMA100 · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2019-7481, SonicWall SMA100 SQL Injection Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 3 Nov 2021, 687 days after it was published. It is known to be used in ransomware campaigns. It affects SonicWall SMA100, an internet-facing product of the kind attackers use for initial access. If you run it, CISA's required action is: Apply updates per vendor instructions.

exploitedYesCISA KEV · 3 Nov 2021
ransomwareKnownused in campaigns
EPSStop 1%among the most likely CVEs to be exploited
severity7.5CVSS 3.1 · high
US federal due3 May 2022BOD 22-01 deadline

What it is

SonicWall SMA100 contains a SQL injection vulnerability allowing an unauthenticated user to gain read-only access to unauthorized resources.

VendorSonicWall (20 exploited CVEs in KEV)
ProductSMA100
VulnerabilitySonicWall SMA100 SQL Injection Vulnerability
WeaknessCWE-89
Published17 Dec 2019
Added to KEV3 Nov 2021
Reported by (CNA)sonicwall

What to do

  1. Check whether you run it. Look for SMA100 in your asset inventory, including appliances and cloud images. Stack check lists every exploited SonicWall CVE at once.
  2. Apply the fix. Apply updates per vendor instructions.
  3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 17 Dec 2019.
  4. Get told next time. Email alerts when CISA adds a CVE for SonicWall.

Other exploited CVEs in SMA100

References

Questions

Is CVE-2019-7481 being exploited?

Yes. CISA added CVE-2019-7481 to the Known Exploited Vulnerabilities catalog on 3 Nov 2021, which means there is reliable evidence of exploitation in the wild.

Is CVE-2019-7481 used in ransomware attacks?

Yes, CISA lists it as known to be used in ransomware campaigns.

How do I fix CVE-2019-7481?

Apply updates per vendor instructions. Check SonicWall's advisory for the fixed versions, and if you can't patch quickly, restrict access to the affected SMA100 and watch it for signs of compromise.

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in November 2021 · SonicWall scorecard · act-now radar.

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