PHP up to 5.6.35/7.0.29/7.1.16/7.2.4 404 Error Page ext/phar/phar_object.c Request Reflected cross site scripting

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.1	$0-$5k	0.00

Summaryinfo

A vulnerability marked as critical has been reported in PHP up to 5.6.35/7.0.29/7.1.16/7.2.4. Affected by this vulnerability is an unknown functionality of the file ext/phar/phar_object.c of the component 404 Error Page. This manipulation as part of Request causes cross site scripting (Reflected). This vulnerability is registered as CVE-2018-10547. Remote exploitation of the attack is possible. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in PHP up to 5.6.35/7.0.29/7.1.16/7.2.4 (Programming Language Software). It has been declared as critical. Affected by this vulnerability is an unknown code of the file ext/phar/phar_object.c of the component 404 Error Page. The manipulation as part of a Request leads to a cross site scripting vulnerability (Reflected). The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. The summary by CVE is:

An issue was discovered in ext/phar/phar_object.c in PHP before 5.6.36, 7.0.x before 7.0.30, 7.1.x before 7.1.17, and 7.2.x before 7.2.5. There is Reflected XSS on the PHAR 403 and 404 error pages via request data of a request for a .phar file. NOTE: this vulnerability exists because of an incomplete fix for CVE-2018-5712.

The bug was discovered 04/26/2018. The weakness was published 04/29/2018 with cPanel (Website). The advisory is shared at php.net. This vulnerability is known as CVE-2018-10547 since 04/29/2018. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 3 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 109878 (openSUSE Security Update : php5 (openSUSE-2018-465)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 171128 (SUSE Enterprise Linux Security Update for php53 (SUSE-SU-2018:1294-1)).

Upgrading to version 5.6.36, 7.0.30, 7.1.17 or 7.2.5 eliminates this vulnerability. A possible mitigation has been published 3 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (109878) and SecurityFocus (BID 104022†). Similar entries are available at VDB-67396, VDB-67398, VDB-67420 and VDB-67724. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• Programming Language Software

Name

• PHP

Version

• 5.6.0
• 5.6.1
• 5.6.2
• 5.6.3
• 5.6.4
• 5.6.5
• 5.6.6
• 5.6.7
• 5.6.8
• 5.6.9
• 5.6.10
• 5.6.11
• 5.6.12
• 5.6.13
• 5.6.14
• 5.6.15
• 5.6.16
• 5.6.17
• 5.6.18
• 5.6.19
• 5.6.20
• 5.6.21
• 5.6.22
• 5.6.23
• 5.6.24
• 5.6.25
• 5.6.26
• 5.6.27
• 5.6.28
• 5.6.29
• 5.6.30
• 5.6.31
• 5.6.32
• 5.6.33
• 5.6.34
• 5.6.35
• 7.0.0
• 7.0.1
• 7.0.2
• 7.0.3
• 7.0.4
• 7.0.5
• 7.0.6
• 7.0.7
• 7.0.8
• 7.0.9
• 7.0.10
• 7.0.11
• 7.0.12
• 7.0.13
• 7.0.14
• 7.0.15
• 7.0.16
• 7.0.17
• 7.0.18
• 7.0.19
• 7.0.20
• 7.0.21
• 7.0.22
• 7.0.23
• 7.0.24
• 7.0.25
• 7.0.26
• 7.0.27
• 7.0.28
• 7.0.29
• 7.1.0
• 7.1.1
• 7.1.2
• 7.1.3
• 7.1.4
• 7.1.5
• 7.1.6
• 7.1.7
• 7.1.8
• 7.1.9
• 7.1.10
• 7.1.11
• 7.1.12
• 7.1.13
• 7.1.14
• 7.1.15
• 7.1.16
• 7.2.0
• 7.2.1
• 7.2.2
• 7.2.3
• 7.2.4

License

• open-source

Website

• Product: https://www.php.org/

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.1
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

NVD Base Score: 🔍

Exploitinginfo

Name: Reflected
Class: Cross site scripting / Reflected
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 109878
Nessus Name: openSUSE Security Update : php5 (openSUSE-2018-465)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 61614
OpenVAS Name: PHP Multiple Vulnerabilities May18 (Linux)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: PHP 5.6.36/7.0.30/7.1.17/7.2.5

Timelineinfo

04/26/2018 🔍
04/29/2018 +2 days 🔍
04/29/2018 +0 days 🔍
04/29/2018 +0 days 🔍
04/29/2018 +0 days 🔍
04/30/2018 +1 days 🔍
05/16/2018 +16 days 🔍
05/17/2018 +1 days 🔍
03/08/2023 +1756 days 🔍

Sourcesinfo

Product: php.org

Advisory: RHSA-2019:2519
Organization: cPanel
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-10547 (🔍)
GCVE (CVE): GCVE-0-2018-10547
GCVE (VulDB): GCVE-100-117205

OVAL: 🔍

SecurityFocus: 104022 - PHP CVE-2018-10545 Security Bypass Vulnerability
SecurityTracker: 1040807

See also: 🔍

Entryinfo

Created: 04/30/2018 09:06
Updated: 03/08/2023 09:06
Changes: 04/30/2018 09:06 (82), 02/01/2020 11:06 (6), 03/08/2023 09:06 (5)
Complete: 🔍
Cache ID: 216::103

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Discussion

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