Patchfirst
CVE-2023-44221 KEV High · 7.2 EPSS 76.3%

SonicWall SMA100 Appliances OS Command Injection Vulnerability

SonicWall · SMA100 Appliances

Summary

A command injection flaw in the SSL-VPN management interface of SonicWall SMA100 Appliances arises from improper neutralization of special elements in input handling. An attacker with remote network access and administrative privileges on the appliance, requiring no user interaction, can inject arbitrary OS commands that run as the 'nobody' user.

Official description · NVD

Improper neutralization of special elements in the SMA100 SSL-VPN management interface allows a remote authenticated attacker with administrative privilege to inject arbitrary commands as a 'nobody' user, potentially leading to OS Command Injection Vulnerability.

Breakdown
62.9 / 100
Exploited
Yes, in CISA KEV
Reports
0
Tactics
3/15

How an attack unfolds

Based on mappings. Select a step to see the evidence.
  1. How attackers get in

  2. What they do

  3. What can follow

First seen exploited 17 months after disclosure.

  1. Disclosedday 0
  2. First seen exploitedVulnCheck KEV evidence+17 mo
  3. Added to CISA KEVEU database agrees+17 mo

CISA KEV listing is when exploitation was confirmed, not necessarily the first attack.

techniques

4 , grouped by in kill-chain order 4

ExecutionTA0002

Unix Shell T1059.004
MITRE CTID mapping of the KEV entry · primary impact

This post-authentication command injection vulnerability is chained with CVE-2024-38475 to allow command execution as the nobody user, affecting versions below 10.2.1.10-62sv.

PersistenceTA0003

Create or Modify System Process T1543 also Privilege Escalation
MITRE CTID mapping of the KEV entry · follow-on activity

Privilege EscalationTA0004

MITRE CTID mapping of the KEV entry · how it is exploited
MITRE CTID mapping of the KEV entry · how it is exploited

Detection

0 rules for this CVE · 83 general rules for its techniques

Rules for this CVE

0 that reference CVE-2023-44221 directly.

CVE-specific rules are not available in this build. Search SigmaHQ ↗

General rules for this CVE’s techniques

These detect the technique in general, not this specific vulnerability.

Exploitation for Privilege EscalationT106831 general rules
Abuse Elevation Control MechanismT154824 general rules
Unix ShellT1059.00419 general rules
Create or Modify System ProcessT15439 general rules

Sigma rules © SigmaHQ, Detection Rule License 1.1; linked, not reproduced.

What security researchers reported

Not named in any threat report yet

Also mentioned in 50 community threat pulses (AlienVault OTX)

Weaker evidence

Pulses are indicator collections that anyone can publish. A mention is not confirmation of exploitation.

References

2 links, grouped by NVD tag (1 duplicate merged)
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