Spam and phishing in Q2 2020

Quarterly highlights Targeted attacks The second quarter often saw phishers resort to targeted attacks, especially against fairly small companies. To attract attention, scammers imitated email messages and websites of companies whose products or services their potential victims could be using. Th...

Lazarus on the hunt for big game

We may only be six months in, but theres little doubt that 2020 will go down in history as a rather unpleasant year. In the field of cybersecurity, the collective hurt mostly crystallized around the increasing prevalence of targeted ransomware attacks. By investigating a number of these incidents...

NewStart CGSL MAIN 6.01 : thunderbird Multiple Vulnerabilities (NS-SA-2020-0036)

The remote NewStart CGSL host, running version MAIN 6.01, has thunderbird packages installed that are affected by multiple vulnerabilities: - By encoding Unicode whitespace characters within the From email header, an attacker can spoof the sender email address that Thunderbird displays. This...

Threat spotlight: WastedLocker, customized ransomware

WastedLocker is a new ransomware operated by a malware exploitation gang commonly known as the Evil Corp gang. The same gang that is associated with Dridex and BitPaymer. The attribution is not based on the malware variants as WastedLocker is very different from BitPaymer. What was kept was the...

DEBIAN-CVE-2020-6820

Under certain conditions, when handling a ReadableStream, a race condition can cause a use-after-free. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Thunderbird 68.7.0, Firefox 74.0.1, and Firefox ESR 68.6.1...

CVE-2020-6819

Under certain conditions, when running the nsDocShell destructor, a race condition can cause a use-after-free. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Thunderbird 68.7.0, Firefox 74.0.1, and Firefox ESR 68.6.1...

CVE-2020-6820

Under certain conditions, when handling a ReadableStream, a race condition can cause a use-after-free. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Thunderbird 68.7.0, Firefox 74.0.1, and Firefox ESR 68.6.1...

CVE-2020-6820

Under certain conditions, when handling a ReadableStream, a race condition can cause a use-after-free. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Thunderbird 68.7.0, Firefox 74.0.1, and Firefox ESR 68.6.1...

Race condition

Under certain conditions, when running the nsDocShell destructor, a race condition can cause a use-after-free. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Thunderbird 68.7.0, Firefox 74.0.1, and Firefox ESR 68.6.1...

CVE-2020-6819

Under certain conditions, when running the nsDocShell destructor, a race condition can cause a use-after-free. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Thunderbird 68.7.0, Firefox 74.0.1, and Firefox ESR 68.6.1...

CVE-2020-6819

Under certain conditions, when running the nsDocShell destructor, a race condition can cause a use-after-free. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Thunderbird 68.7.0, Firefox 74.0.1, and Firefox ESR 68.6.1...

CVE-2020-6820

Under certain conditions, when handling a ReadableStream, a race condition can cause a use-after-free. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Thunderbird 68.7.0, Firefox 74.0.1, and Firefox ESR 68.6.1...

CVE-2020-6820

Under certain conditions, when handling a ReadableStream, a race condition can cause a use-after-free. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Thunderbird 68.7.0, Firefox 74.0.1, and Firefox ESR 68.6.1...

CVE-2020-6820

Under certain conditions, when handling a ReadableStream, a race condition can cause a use-after-free. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Thunderbird 68.7.0, Firefox 74.0.1, and Firefox ESR 68.6.1...

CVE-2020-6820

Under certain conditions, when handling a ReadableStream, a race condition can cause a use-after-free. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Thunderbird 68.7.0, Firefox 74.0.1, and Firefox ESR 68.6.1. Recent assessments: gwillcox-r7 at November...

Mozilla Firefox ESR < 68.6.1

The version of Firefox ESR installed on the remote macOS or Mac OS X host is prior to 68.6.1. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2020-11 advisory. - Under certain conditions, when handling a ReadableStream, a race condition can cause a use-after-free. ...

Mozilla Firefox < 74.0.1

The version of Firefox installed on the remote Windows host is prior to 74.0.1. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2020-11 advisory. - Under certain conditions, when handling a ReadableStream, a race condition can cause a use-after-free. We are aware o...

Mozilla Firefox < 74.0.1

The version of Firefox installed on the remote macOS or Mac OS X host is prior to 74.0.1. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2020-11 advisory. - Under certain conditions, when handling a ReadableStream, a race condition can cause a use-after-free. We a...

Mozilla Firefox ESR < 68.6.1

The version of Firefox ESR installed on the remote Windows host is prior to 68.6.1. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2020-11 advisory. - Under certain conditions, when handling a ReadableStream, a race condition can cause a use-after-free. We are awa...

Firefox Zero-Day Flaws Exploited in the Wild Get Patched

Mozilla patched two Firefox browser zero-day vulnerabilities actively being exploited in the wild. The flaws, both use-after-free bugs, have been part of “targeted attacks in the wild,” according to a Mozilla Foundation security advisory posted Friday. Both bugs have critical ratings and allow...