PHP FormMail Generator form.lib.php Filename unrestricted upload
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
8.4 | $0-$5k | 0.00 |
A vulnerability has been found in PHP FormMail Generator (Programming Language Software) (affected version not known) and classified as critical. Affected by this vulnerability is some unknown functionality in the library form.lib.php. The manipulation as part of a Filename leads to a unrestricted upload vulnerability. The CWE definition for the vulnerability is CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:
The code generated by PHP FormMail Generator prior to 17 December 2016 is vulnerable to unrestricted upload of dangerous file types. In the generated form.lib.php file, upload file types are checked against a hard-coded list of dangerous extensions. This list does not include all variations of PHP files, which may lead to execution of the contained PHP code if the attacker can guess the uploaded filename. The form by default appends a short random string to the end of the filename.
The bug was discovered 03/07/2017. The weakness was shared 07/13/2018 as confirmed advisory (CERT.org). It is possible to read the advisory at kb.cert.org. This vulnerability is known as CVE-2016-9492 since 11/21/2016. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1608.002 according to MITRE ATT&CK.
By approaching the search of inurl:form.lib.php it is possible to find vulnerable targets with Google Hacking.
Upgrading eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 96718†). The entry VDB-121460 is related to this item.
Product
Type
Name
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 8.5VulDB Meta Temp Score: 8.4
VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 9.8
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Unrestricted uploadCWE: CWE-434 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
Google Hack: 🔍
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Timeline
11/21/2016 🔍12/17/2016 🔍
03/07/2017 🔍
03/08/2017 🔍
07/13/2018 🔍
07/13/2018 🔍
07/14/2018 🔍
12/27/2024 🔍
Sources
Advisory: kb.cert.orgStatus: Confirmed
CVE: CVE-2016-9492 (🔍)
CERT: 🔍
SecurityFocus: 96718 - PHP FormMail Generator Cross Site Scripting and Arbitrary File Upload Vulnerabilities
See also: 🔍
Entry
Created: 07/14/2018 05:04 PMUpdated: 12/27/2024 01:22 PM
Changes: 07/14/2018 05:04 PM (61), 03/05/2020 08:23 AM (3), 12/27/2024 01:22 PM (17)
Complete: 🔍
Cache ID: 18:6EC:40
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