phpBB up to 3.2.4 Admin Control Panel file_exists input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.8$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in phpBB up to 3.2.4. Impacted is the function file_exists of the component Admin Control Panel. The manipulation results in input validation. This vulnerability was named CVE-2018-19274. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in phpBB up to 3.2.4 (Forum Software). It has been classified as critical. Affected is the function file_exists of the component Admin Control Panel. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Passing an absolute path to a file_exists check in phpBB before 3.2.4 allows Remote Code Execution through Object Injection by employing Phar deserialization when an attacker has access to the Admin Control Panel with founder permissions.

The bug was discovered 11/16/2018. The weakness was presented 11/17/2018 (Website). The advisory is available at phpbb.com. This vulnerability is traded as CVE-2018-19274 since 11/14/2018. The exploitability is told to be easy. It is possible to launch the attack remotely. The requirement for exploitation is a authentication. Technical details are known, but there is no available exploit.

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. The vulnerability scanner Nessus provides a plugin with the ID 119121 (Debian DLA-1593-1 : phpbb3 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 176833 (Debian Security Update for phpbb3 (DLA 1593-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 1 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (119121). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

VulDB Base Score: 4.7
VulDB Temp Score: 4.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.2
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: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 119121
Nessus Name: Debian DLA-1593-1 : phpbb3 security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

11/14/2018 🔍
11/16/2018 +2 days 🔍
11/17/2018 +1 days 🔍
11/17/2018 +0 days 🔍
11/18/2018 +1 days 🔍
11/24/2018 +6 days 🔍
11/26/2018 +2 days 🔍
06/11/2023 +1658 days 🔍

Sourcesinfo

Product: phpbb.com

Advisory: DLA 1593-1
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-19274 (🔍)
GCVE (CVE): GCVE-0-2018-19274
GCVE (VulDB): GCVE-100-126978

Entryinfo

Created: 11/18/2018 15:56
Updated: 06/11/2023 07:15
Changes: 11/18/2018 15:56 (71), 04/13/2020 21:28 (4), 06/11/2023 07:15 (4)
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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