Hackers are exploiting a zero-day in SonicWall:
In an email, an NCC Group spokeswoman wrote: “Our team has observed signs of an attempted exploitation of a vulnerabilitythat affects the SonicWall SMA 100 series devices. We are working closely with SonicWall to investigate this in more depth.”
In Monday’s update, SonicWall representatives said the company’s engineering team confirmed that the submission by NCC Group included a “critical zero-day” in the SMA 100 series 10.x code. SonicWall is tracking it as SNWLID-2021-0001. The SMA 100 series is a line of secure remote access appliances.
The disclosure makes SonicWall at least the fifth large company to report in recent weeks that it was targeted by sophisticated hackers. Other companies include network management tool provider SolarWinds, Microsoft, FireEye, and Malwarebytes. CrowdStrike also reported being targeted but said the attack wasn’t successful.
Neither SonicWall nor NCC Group said that the hack involving the SonicWall zero-day was linked to the larger hack campaign involving SolarWinds. Based on the timing of the disclosure and some of the details in it, however, there is widespread speculation that the two are connected.
The speculation is just that—speculation. I have no opinion in the matter. This could easily be part of the SolarWinds campaign, which targeted other security companies. But there are a lot of “highly sophisticated threat actors”—that’s how NCC Group described them—out there, and this could easily be a coincidence.
Were I working for a national intelligence organization, I would try to disguise my operations as being part of the SolarWinds attack.
EDITED TO ADD (2/9): SonicWall has patched the vulnerability.