Patchfirst
CVE-2020-3292 High · 7.2 EPSS 3.2%

Cisco Small Business RV Series Routers Stack Overflow Arbitrary Code Execution Vulnerabilities

Cisco · Cisco Small Business RV Series Router Firmware

Official description · CVE.org

Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV320 and RV325 Series Routers and Cisco Small Business RV016, RV042, and RV082 Routers could allow an authenticated, remote attacker with administrative privileges to execute arbitrary code on an affected device. The vulnerabilities are due to insufficient boundary restrictions on user-supplied input to scripts in the web-based management interface. An attacker with administrative privileges that are sufficient to log in to the web-based management interface could exploit each vulnerability by sending crafted requests that contain overly large values to an affected device, causing a stack overflow. A successful exploit could allow the attacker to cause the device to crash or allow the attacker to execute arbitrary code with root privileges on the underlying operating system.

Breakdown
22.7 / 100
Exploited
Not confirmed
Reports
0
Tactics
6/15

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

Disclosed on 18 Jun 2020. No public exploit code or confirmed exploitation is recorded.

techniques

4 , grouped by in kill-chain order 4

Initial AccessTA0001

Valid Accounts T1078 also Persistence, Privilege Escalation, Stealth
MITRE CTID mapping of the CVE · how it is exploited
MITRE CTID mapping of the CVE · how it is exploited

ExecutionTA0002

MITRE CTID mapping of the CVE · follow-on activity

ImpactTA0040

MITRE CTID mapping of the CVE · primary impact

Detection

0 rules for this CVE · 303 general rules for its techniques

Rules for this CVE

0 that reference CVE-2020-3292 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.

Valid AccountsT107856 general rules
Exploit Public-Facing ApplicationT1190149 general rules
Application or System ExploitationT1499.0043 general rules
Command and Scripting InterpreterT105995 general rules

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

What security researchers reported

Not named in any threat report yet

References

1 link, grouped by NVD tag
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