Technical Analysis: Black Basta Malware Overview
From the analyst's perspective, the only alert that was generated and brought to the SOC was a Suricata FTP rule looking for CVE 1999-0911, related to an overflow using the MKD command.
CVE-1999-0911 Public exploit EPSS 38.1%
Buffer overflow in ProFTPD, wu-ftpd, and beroftpd allows remote attackers to gain root access via a series of MKD and CWD commands that create nested directories.
Summary
A buffer overflow in ProFTPD, wu-ftpd, and beroftpd lets remote attackers gain root access. The flaw is triggered by a series of MKD and CWD commands that create nested directories.
Heading is the official description · CVE.org
Priority scorePatchfirst’s 0 to 100 ranking. It adds points for CISA KEV listing, ransomware use, EPSS, threat reports, public exploit code and CVSS. Every CVE page shows the breakdown. Breakdown
28.6 / 100
- Exploited
- Not confirmed
- Reports
- 1
- Tactics
- 0/15
Exploitation timelineDated milestones for a CVE: when it was disclosed, when exploit code became public, when exploitation was confirmed, and when threat reports named it.
Public exploit code (Exploit-DB) was available 6 months before disclosure.
- Public exploit codeExploit-DB6 mo before
- Disclosedday 0
MITRE ATT&CKA public catalogue of the techniques attackers use, maintained by MITRE. Patchfirst uses it to describe what attackers do with a vulnerability. techniques
No techniques linkedNo ATT&CK techniques are linked to this CVE yet. MITRE CTID has not mapped it, and no report passage in the corpus ties it to a technique.
What security researchers reported
Named in 1 threat report1 reportquadrantsec.com
Reports are matched by finding the exact id CVE-1999-0911 in their text; nobody has reviewed the match. One passage is shown per report, at most 320 characters, linked to the original.