PHP up to 5.4.43/5.5.27/5.6.11 ZIP Archive PharData path traversal

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.5$0-$5k0.00

A vulnerability classified as very critical has been found in PHP up to 5.4.43/5.5.27/5.6.11 (Programming Language Software). This affects the function PharData of the component ZIP Archive Handler. The manipulation with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Directory traversal vulnerability in the PharData class in PHP before 5.4.44, 5.5.x before 5.5.28, and 5.6.x before 5.6.12 allows remote attackers to write to arbitrary files via a .. (dot dot) in a ZIP archive entry that is mishandled during an extractTo call.

The weakness was published 01/19/2016 (Website). The advisory is shared at bugs.php.net. This vulnerability is uniquely identified as CVE-2015-6833 since 09/08/2015. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/03/2022). MITRE ATT&CK project uses the attack technique T1006 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 86794 (Debian DLA-341-1 : 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 11629 (PHP Versions Prior to 5.6.12/5.5.28/5.4.44 Multiple Vulnerabilities).

Upgrading to version 5.4.44, 5.5.28 or 5.6.12 eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (86794). Similar entries are available at VDB-3695, VDB-5786, VDB-5794 and VDB-9021. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.7
VulDB Meta Temp Score: 8.5

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Path traversal
CWE: CWE-22
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 86794
Nessus Name: Debian DLA-341-1 : php5 security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 103043
OpenVAS Name: PHP Multiple Vulnerabilities - 01 - Mar16 (Windows)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: PHP 5.4.44/5.5.28/5.6.12

Timelineinfo

09/08/2015 🔍
11/08/2015 +61 days 🔍
11/09/2015 +1 days 🔍
01/19/2016 +71 days 🔍
01/19/2016 +0 days 🔍
01/20/2016 +1 days 🔍
07/03/2022 +2356 days 🔍

Sourcesinfo

Product: php.org

Advisory: 70019
Status: Not defined
Confirmation: 🔍

CVE: CVE-2015-6833 (🔍)
GCVE (CVE): GCVE-0-2015-6833
GCVE (VulDB): GCVE-100-80325
See also: 🔍

Entryinfo

Created: 01/20/2016 10:07 AM
Updated: 07/03/2022 03:58 PM
Changes: 01/20/2016 10:07 AM (54), 06/25/2018 09:14 AM (21), 07/03/2022 03:58 PM (3)
Complete: 🔍
Cache ID: 18:362:40

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