VDB-107959 · CVE-2015-2156 · Nessus 83930

Netty up to 3.9.8/3.10.3/4.0.28/4.1.0.BEta4 Cookie input validation

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.
6.3	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Netty up to 3.9.8/3.10.3/4.0.28/4.1.0.BEta4. It has been classified as problematic. Impacted is an unknown function of the component Cookie Handler. This manipulation causes input validation. The identification of this vulnerability is CVE-2015-2156. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability has been found in Netty up to 3.9.8/3.10.3/4.0.28/4.1.0.BEta4 and classified as problematic. Affected by this vulnerability is an unknown code block of the component Cookie Handler. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality. The summary by CVE is:

Netty before 3.9.8.Final, 3.10.x before 3.10.3.Final, 4.0.x before 4.0.28.Final, and 4.1.x before 4.1.0.Beta5 and Play Framework 2.x before 2.3.9 might allow remote attackers to bypass the httpOnly flag on cookies and obtain sensitive information by leveraging improper validation of cookie name and value characters.

The bug was discovered 05/16/2015. The weakness was shared 10/18/2017 by Roman Shafigullin with LinkedIn (oss-sec). It is possible to read the advisory at openwall.com. This vulnerability is known as CVE-2015-2156 since 02/28/2015. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

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. The vulnerability scanner Nessus provides a plugin with the ID 83930 (Fedora 22 : netty-4.0.28-1.fc22 (2015-8684)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 115215 (Fedora Security Update for netty (FEDORA-2015-8684)).

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 databases at Tenable (83930), SecurityFocus (BID 74704†) and CERT Bund (WID-SEC-2022-0770). Be aware that VulDB is the high quality source for vulnerability data.

Affected

IBM DB2
Red Hat Enterprise Linux
IBM SPSS
EMC Avamar
Hitachi Ops Center

Productinfo

Name

Netty

Version

Website

Product: https://github.com/netty/netty/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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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: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
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Nessus ID: 83930
Nessus Name: Fedora 22 : netty-4.0.28-1.fc22 (2015-8684)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 867773
OpenVAS Name: Fedora Update for netty FEDORA-2015-8713
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Patch: github.com

Timelineinfo

02/28/2015 🔍
05/09/2015 +70 days 🔍
05/16/2015 +7 days 🔍
05/22/2015 +6 days 🔍
06/02/2015 +11 days 🔍
10/18/2017 +869 days 🔍
10/18/2017 +0 days 🔍
10/18/2017 +0 days 🔍
01/11/2026 +3007 days 🔍

Sourcesinfo

Product: github.com

Advisory: openwall.com
Researcher: Roman Shafigullin
Organization: LinkedIn
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-2156 (🔍)
GCVE (CVE): GCVE-0-2015-2156
GCVE (VulDB): GCVE-100-107959
SecurityFocus: 74704 - Netty and Play Framework CVE-2015-2156 Session Hijacking Vulnerability
CERT Bund: WID-SEC-2022-0770 - IBM DB2: Mehrere Schwachstellen

Entryinfo

Created: 10/19/2017 00:10
Updated: 01/11/2026 14:34
Changes: 10/19/2017 00:10 (74), 11/25/2019 17:52 (2), 01/03/2023 19:31 (4), 11/28/2024 21:12 (19), 01/11/2026 14:34 (7)
Complete: 🔍
Cache ID: 216::103