Apple Mac OS X up to 10.11.4 apache_mod_php input validation

CVSS Meta Temp Score
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CTI Interest Score
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9.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Apple Mac OS X up to 10.11.4. This vulnerability affects unknown code of the component apache_mod_php. The manipulation leads to input validation. This vulnerability is documented as CVE-2016-4071. The attack can be initiated remotely. Additionally, an exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple Mac OS X up to 10.11.4 (Operating System) and classified as critical. This issue affects an unknown functionality of the component apache_mod_php. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Format string vulnerability in the php_snmp_error function in ext/snmp/snmp.c in PHP before 5.5.34, 5.6.x before 5.6.20, and 7.x before 7.0.5 allows remote attackers to execute arbitrary code via format string specifiers in an SNMP::get call.

The weakness was released 05/16/2016 by Andrew as HT206567 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. The identification of this vulnerability is CVE-2016-4071 since 04/23/2016. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are unknown but a public exploit is available. The advisory points out:

Multiple vulnerabilities existed in PHP versions prior to 5.5.34. These were addressed by updating PHP to version 5.5.34.

The exploit is available at exploit-db.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 91397 (Debian DLA-499-1 : php5 security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 11624 (PHP Versions Prior to 5.6.20/5.5.34 Multiple Vulnerabilities).

Upgrading to version 10.11.5 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (39645), Tenable (91397) and SecurityFocus (BID 85800†). Entries connected to this vulnerability are available at VDB-3695, VDB-5786, VDB-5794 and VDB-9021. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

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CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.3

VulDB Base Score: 9.8
VulDB Temp Score: 8.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 91397
Nessus Name: Debian DLA-499-1 : php5 security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 53473
OpenVAS Name: SuSE Update for php5 openSUSE-SU-2016:1274-1 (php5)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Mac OS X 10.11.5
Patch: 6e25966544fb1d2f3d7596e060ce9c9269bbdcf8

Timelineinfo

03/02/2016 🔍
04/23/2016 +52 days 🔍
05/16/2016 +23 days 🔍
05/16/2016 +0 days 🔍
05/18/2016 +2 days 🔍
05/20/2016 +2 days 🔍
06/01/2016 +12 days 🔍
01/19/2025 +3154 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT206567
Researcher: Andrew
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-4071 (🔍)
GCVE (CVE): GCVE-0-2016-4071
GCVE (VulDB): GCVE-100-87431

OVAL: 🔍

SecurityFocus: 85800 - PHP 'snmp.c' Remote Format String Vulnerability

scip Labs: https://www.scip.ch/en/?labs.20150108
See also: 🔍

Entryinfo

Created: 05/18/2016 11:54
Updated: 01/19/2025 23:52
Changes: 05/18/2016 11:54 (74), 11/30/2018 11:59 (15), 08/19/2022 16:00 (5), 01/19/2025 23:52 (14)
Complete: 🔍
Cache ID: 216::103

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