HOMEVULNERABILITIESCVE-2019-16662
CRITICALPOC

CVE-2019-16662

CWE-78Published: October 28, 2019· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

An issue was discovered in rConfig 3.9.2. An attacker can directly execute system commands by sending a GET request to ajaxServerSettingsChk.php because the rootUname parameter is passed to the exec function without filtering, which can lead to command execution.

NVD Source

Technical Analysis

CVE-2019-16662 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

A proof-of-concept (PoC) exploit exists for CVE-2019-16662. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

rconfig1 product(s)
rconfig
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

POC AVAILABLEProof-of-concept code exists
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://drive.google.com/file/d/1bTpTn4-alJ8qGCEATLq-oVM6HbhE65iY/view?usp=sharing
ADVISORYhttps://drive.google.com/open?id=1OXI5cNuwWqc6y-7BgNCfYHgFPK2cpvnu
ADVISORYhttps://gist.github.com/mhaskar/ceb65fa4ca57c3cdccc1edfe2390902e
ADVISORYhttps://shells.systems/rconfig-v3-9-2-authenticated-and-unauthenticated-rce-cve-2019-16663-and-cve-2019-16662/
ADVISORYhttps://drive.google.com/file/d/1bTpTn4-alJ8qGCEATLq-oVM6HbhE65iY/view?usp=sharing
ADVISORYhttps://drive.google.com/open?id=1OXI5cNuwWqc6y-7BgNCfYHgFPK2cpvnu
ADVISORYhttps://gist.github.com/mhaskar/ceb65fa4ca57c3cdccc1edfe2390902e
ADVISORYhttps://shells.systems/rconfig-v3-9-2-authenticated-and-unauthenticated-rce-cve-2019-16663-and-cve-2019-16662/

All References (14)

→
http://packetstormsecurity.com/files/154999/rConfig-3.9.2-Remote-Code-Execution.html
→
http://packetstormsecurity.com/files/155186/rConfig-3.9.2-Command-Injection.html
→
https://drive.google.com/file/d/1bTpTn4-alJ8qGCEATLq-oVM6HbhE65iY/view?usp=sharingExploit · Third Party Advisory
→
https://drive.google.com/open?id=1OXI5cNuwWqc6y-7BgNCfYHgFPK2cpvnuExploit · Third Party Advisory
→
https://gist.github.com/mhaskar/ceb65fa4ca57c3cdccc1edfe2390902eExploit · Third Party Advisory
→
https://rconfig.com/downloadProduct
→
https://shells.systems/rconfig-v3-9-2-authenticated-and-unauthenticated-rce-cve-2019-16663-and-cve-2019-16662/Exploit · Technical Description · Third Party Advisory
→
http://packetstormsecurity.com/files/154999/rConfig-3.9.2-Remote-Code-Execution.html
→
http://packetstormsecurity.com/files/155186/rConfig-3.9.2-Command-Injection.html
→
https://drive.google.com/file/d/1bTpTn4-alJ8qGCEATLq-oVM6HbhE65iY/view?usp=sharingExploit · Third Party Advisory
→
https://drive.google.com/open?id=1OXI5cNuwWqc6y-7BgNCfYHgFPK2cpvnuExploit · Third Party Advisory
→
https://gist.github.com/mhaskar/ceb65fa4ca57c3cdccc1edfe2390902eExploit · Third Party Advisory
→
https://rconfig.com/downloadProduct
→
https://shells.systems/rconfig-v3-9-2-authenticated-and-unauthenticated-rce-cve-2019-16663-and-cve-2019-16662/Exploit · Technical Description · Third Party Advisory

Quick Facts

CVE IDCVE-2019-16662
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-78
CISA KEVNo
ExploitPOC
Affected1 vendor(s)
PublishedOct 28, 2019

Related CVEs (CWE-78)

CVE-2014-0659
10.0
CVE-2013-6881
10.0
CVE-2013-4983
10.0
CVE-2014-3418
10.0
CVE-2012-2953
10.0
CVE-2009-1916
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2019-16662 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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