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CVE-2016-6174

Public exploit available. Not confirmed exploited in the wild yet. A vendor fix is available.

CVSS 3.08.1HighEPSS percentile96th12% chance in 30 daysCISA KEVNot listedNo confirmed exploitation
Public exploit: 2 sourcesFixVendor fixNo build named by the sources

Published Updated Sources: CVE.org, NVD, BDU

NVD CVE.org

What to do

The vendor has published a fix. Version details are below where the sources state them.

  • PhpAffected: ≤ 5.4.23Upgrade to: after 5.4.23Stated by: NVD
  • Invisioncommunity Invision Power BoardAffected: ≤ 4.1.12.3Upgrade to: after 4.1.12.3Stated by: NVD
  • Invision Power Services Invision Power BoardAffected: до 4.1.12.3 включительноUpgrade to: not statedStated by: BDU

Versions as the sources state them. Full version matrix after sign-in

Check it yourselfA free OpenVAS check exists for this CVE. Run it against your hosts.Is your organisation exposed?Request an assessment to establish which checks fit your systems.

What it is

From the CVE record

applications/core/modules/front/system/content.php in Invision Power Services IPS Community Suite (aka Invision Power Board, IPB, or Power Board) before 4.1.13, when used with PHP before 5.4.24 or 5.5.x before 5.5.8, allows remote attackers to execute arbitrary code via the content_class parameter.

In plain language

No plain-language summary for this CVE yet.

Exploitation

Where each signal puts this CVE on the scale from published to confirmed exploited.

EPSS96th
Public exploit
CISA KEV

Not in the catalog. CISA has not confirmed exploitation.

Public exploits

2 sources with a proof of concept or module.

Exploit links, PoCs and Metasploit modules after sign-in
EPSS

12% chance of exploitation activity in the next 30 days, which ranks it in the 96th percentile of scored CVEs.

Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.

Lifecycle

A public exploit existed 61 days before the patch.

  1. OpenVAS check added
  2. Patch availablerecord updated
  3. Public exploit / PoCsource: packetstorm
  4. Publishedweakness classified

Affected products

And 1 more affected product. See all after sign-in

Scale

How widely the affected products are used. This is not a count of vulnerable hosts.

Estimate Public sources, each figure dated. How much of it is already patched is not known.

PHP

Web

Usage: unknown. No public source measures this product yet.

Version split: unknown. No public source for this product.

Technical detail

CVSS 3.0 vector

Open in the CVSS calculator

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Scored 8.1 by NVD.

How it is reached

  • Attack Vector NetworkExploitable remotely over the network without any special conditions
  • Attack Complexity HighRequires specific conditions like a race condition or non-default configuration
  • Privileges Required NoneNo authentication required — anyone can exploit this
  • User Interaction NoneNo user interaction needed — fully automated exploitation

Scope

  • Scope UnchangedImpact is limited to the vulnerable component itself

Impact if exploited

  • Confidentiality HighTotal information disclosure — all data in the component is compromised
  • Integrity HighTotal loss of integrity — attacker can modify any data in the component
  • Availability HighTotal denial of service — the component is completely unavailable

Weaknesses

Sources

References in the record

And 5 more references. See all after sign-in

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We'll flag the next CVE, public exploit or patch for PHP, not every advisory. This one: public exploit.