h5ai up to 0.24.x href unrestricted upload

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.
6.6$0-$5k0.00

A vulnerability was found in h5ai up to 0.24.x and classified as critical. This issue affects an unknown code block. The manipulation of the argument href with an unknown input leads to a unrestricted upload vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Unrestricted file upload vulnerability in h5ai before 0.25.0 allows remote attackers to execute arbitrary code by uploading a file with an executable extension, then accessing it via a direct request to the file in the directory specified by the href parameter.

The weakness was published 09/28/2015 (Website). The advisory is shared at exploit-db.com. The identification of this vulnerability is CVE-2015-3203 since 04/10/2015. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details as well as a public exploit are known. MITRE ATT&CK project uses the attack technique T1608.002 for this issue.

A public exploit has been developed by rTheory and been published even before and not after the advisory. The exploit is available at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 6 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 0.25.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Exploit-DB (38256).

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Unrestricted upload
CWE: CWE-434 / CWE-284 / CWE-266
ATT&CK: T1608.002

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: rTheory
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: h5ai 0.25.0

Timelineinfo

04/10/2015 🔍
09/22/2015 +165 days 🔍
09/22/2015 +0 days 🔍
09/28/2015 +6 days 🔍
09/28/2015 +0 days 🔍
09/29/2015 +1 days 🔍
01/04/2018 +828 days 🔍

Sourcesinfo

Advisory: exploit-db.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-3203 (🔍)
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 09/29/2015 10:21
Updated: 01/04/2018 08:45
Changes: 09/29/2015 10:21 (46), 01/04/2018 08:45 (10)
Complete: 🔍

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