SDcms 1.6 on PHP5 themecontroller.php check_bad code injection

CVSS Meta Temp Score
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Current Exploit Price (≈)
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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.
7.5$0-$5k0.00

Summaryinfo

A vulnerability was found in SDcms 1.6 on PHP5. It has been declared as critical. This issue affects the function check_bad of the file app/admin/controller/themecontroller.php. The manipulation results in code injection. This vulnerability was named CVE-2018-19520. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability classified as critical has been found in SDcms 1.6 on PHP5. Affected is the function check_bad of the file app/admin/controller/themecontroller.php. The manipulation with an unknown input leads to a code injection vulnerability. CWE is classifying the issue as CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

An issue was discovered in SDCMS 1.6 with PHP 5.x. app/admin/controller/themecontroller.php uses a check_bad function in an attempt to block certain PHP functions such as eval, but does not prevent use of preg_replace 'e' calls, allowing users to execute arbitrary code by leveraging access to admin template management.

The bug was discovered 11/24/2018. The weakness was presented 11/25/2018 (Website). The advisory is available at blog.whiterabbitxyj.com. This vulnerability is traded as CVE-2018-19520 since 11/25/2018. The exploitability is told to be easy. It is possible to launch the attack remotely. Required for exploitation is a authentication. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1059 by the MITRE ATT&CK project.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k. By approaching the search of inurl:app/admin/controller/themecontroller.php it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.6

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Code injection
CWE: CWE-94 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/24/2018 🔍
11/25/2018 +1 days 🔍
11/25/2018 +0 days 🔍
11/25/2018 +0 days 🔍
11/26/2018 +1 days 🔍
04/14/2020 +505 days 🔍

Sourcesinfo

Advisory: blog.whiterabbitxyj.com
Status: Not defined

CVE: CVE-2018-19520 (🔍)
GCVE (CVE): GCVE-0-2018-19520
GCVE (VulDB): GCVE-100-127098

Entryinfo

Created: 11/26/2018 09:51
Updated: 04/14/2020 17:14
Changes: 11/26/2018 09:51 (57), 04/14/2020 17:14 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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