Oracle Java SE 6u131/7u121/8u112 RMI ObjectInputStream.skipCustomData input validation

CVSS Meta Temp Score
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CTI Interest Score
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8.6$0-$5k0.00

Summaryinfo

A vulnerability was found in Oracle Java SE 6u131/7u121/8u112. It has been classified as critical. This vulnerability affects the function ObjectInputStream.skipCustomData of the component RMI. The manipulation leads to input validation. This vulnerability is documented as CVE-2017-3241. The attack can be initiated remotely. Additionally, an exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Oracle Java SE 6u131/7u121/8u112 (Programming Language Software). This issue affects the function ObjectInputStream.skipCustomData of the component RMI. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability.

The bug was discovered 01/17/2017. The weakness was released 01/19/2017 with Oracle as Oracle Critical Patch Update Advisory - January 2017 as confirmed advisory (Website). The advisory is shared at oracle.com. The identification of this vulnerability is CVE-2017-3241 since 12/06/2016. 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.

A public exploit has been developed in Python and been published 4 days after the advisory. The exploit is available at exploit-db.com. It is declared as functional. The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 96628 (Oracle Java SE Multiple Vulnerabilities (January 2017 CPU) (SWEET32)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 371523 (IBM Cognos Business Intelligence Server Multiple Vulnerabilities (swg22004036)). The code used by the exploit is:

exp += '\xac\xed\x00\x05'

exp1 = ''
exp1 += '\x72'
exp1 += '\x00\x0c'+'java.io.File'
exp1 += '\x41'*8
exp1 += '\x00'
exp1 += '\x00\x00'

exp += exp1 * 10000

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

The vulnerability is also documented in the databases at Exploit-DB (41145), Tenable (96628) and SecurityFocus (BID 95488†). seclists.org is providing further details. Entries connected to this vulnerability are available at VDB-92811, VDB-92879, VDB-93546 and VDB-95550. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.6

VulDB Base Score: 8.3
VulDB Temp Score: 7.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

Vendor Base Score (Oracle): 9.0
Vendor Vector (Oracle): 🔍

NVD Base Score: 9.0
NVD Vector: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Functional
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 96628
Nessus Name: Oracle Java SE Multiple Vulnerabilities (January 2017 CPU) (SWEET32)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 703782
OpenVAS Name: Debian Security Advisory DSA 3782-1 (openjdk-7 - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

12/06/2016 🔍
01/17/2017 +42 days 🔍
01/17/2017 +0 days 🔍
01/19/2017 +2 days 🔍
01/19/2017 +0 days 🔍
01/19/2017 +0 days 🔍
01/19/2017 +0 days 🔍
01/23/2017 +4 days 🔍
01/23/2017 +0 days 🔍
01/27/2017 +4 days 🔍
06/20/2024 +2700 days 🔍

Sourcesinfo

Vendor: oracle.com

Advisory: Oracle Critical Patch Update Advisory - January 2017
Organization: Oracle
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-3241 (🔍)
GCVE (CVE): GCVE-0-2017-3241
GCVE (VulDB): GCVE-100-95681

OVAL: 🔍

SecurityFocus: 95488 - Oracle Java SE and JRockit CVE-2017-3241 Remote Security Vulnerability
OSVDB: - CVE-2017-3241 - Oracle - Multiple Products - Unspecified Issue
SecurityTracker: 1037637

scip Labs: https://www.scip.ch/en/?labs.20161013
Misc.: 🔍
See also: 🔍

Entryinfo

Created: 01/19/2017 14:16
Updated: 06/20/2024 00:30
Changes: 01/19/2017 14:16 (99), 08/04/2020 10:37 (7), 11/02/2022 13:43 (5), 06/20/2024 00:30 (15)
Complete: 🔍
Cache ID: 216:F9A:103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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