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.
8.2	$0-$5k	0.00

A vulnerability, which was classified as critical, was found in Apache Traffic Server up to 5.3.0. This affects the function set_dynamic_table_size of the component HTTP2. The manipulation of the argument frame_handlers with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

The HTTP/2 experimental feature in Apache Traffic Server 5.3.x before 5.3.1 allows remote attackers to cause a denial of service (out-of-bounds access and daemon crash) or possibly execute arbitrary code via vectors related to the (1) frame_handlers array or (2) set_dynamic_table_size function.

The bug was discovered 07/04/2015. The weakness was published 10/30/2017 (Website). It is possible to read the advisory at mail-archives.us.apache.org. This vulnerability is uniquely identified as CVE-2015-3249 since 04/10/2015. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 87240 (Apache Traffic Server 5.3.x < 5.3.1 'url_sig' Plugin Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Web Servers and running in the context r.

Upgrading to version 5.3.1 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 Tenable (87240). Similar entry is available at 108792.

Productinfo

Vendor

• Apache

Name

• Traffic Server

Version

• 5.0
• 5.1
• 5.2
• 5.3

License

• open-source

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

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

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB 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: 🔍

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

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

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: 87240
Nessus Name: Apache Traffic Server 5.3.x < 5.3.1 'url_sig' Plugin Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 900077
OpenVAS Name: Apache Traffic Server (ATS) Denial of Service Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Traffic Server 5.3.1

Timelineinfo

04/10/2015 🔍
07/04/2015 +85 days 🔍
07/04/2015 +0 days 🔍
07/04/2015 +0 days 🔍
12/08/2015 +157 days 🔍
10/30/2017 +692 days 🔍
10/30/2017 +0 days 🔍
10/31/2017 +1 days 🔍
01/21/2021 +1178 days 🔍

Sourcesinfo

Vendor: apache.org

Advisory: mail-archives.us.apache.org
Researcher: Stuart Larsen
Status: Not defined

CVE: CVE-2015-3249 (🔍)
SecurityFocus: 101631 - Apache Traffic Server CVE-2015-3249 Multiple Remote Code Execution Vulnerabilities

See also: 🔍

Entryinfo

Created: 10/31/2017 07:53
Updated: 01/21/2021 09:51
Changes: 10/31/2017 07:53 (73), 12/02/2019 08:42 (4), 01/21/2021 09:51 (2)
Complete: 🔍

Discussion

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