Novell Netware 6.5 xdrDecodeString memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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9.0$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Novell Netware 6.5. This vulnerability affects the function xdrDecodeString. Performing a manipulation results in memory corruption. This vulnerability is identified as CVE-2010-4227. Additionally, an exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Novell Netware 6.5 (Operating System). This affects the function xdrDecodeString. The manipulation 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 xdrDecodeString function in XNFS.NLM in Novell Netware 6.5 before SP8 allows remote attackers to cause a denial of service (abend) or execute arbitrary code via a crafted, signed value in a NFS RPC request to port UDP 1234, leading to a stack-based buffer overflow.

The weakness was released 02/18/2011 by Francis Provencher (Website). It is possible to read the advisory at download.novell.com. This vulnerability is uniquely identified as CVE-2010-4227. 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 and a public exploit are known.

A public exploit has been developed by Francis Provencher in Ruby and been published 6 days after the advisory. The exploit is shared for download at securityfocus.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $25k-$100k.

Upgrading to version 6.5 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. Attack attempts may be identified with Snort ID 2185. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 10874.

The vulnerability is also documented in the databases at X-Force (65625), Exploit-DB (16234), SecurityFocus (BID 46535†), OSVDB (71408†) and SecurityTracker (ID 1025119†). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.0

VulDB Base Score: 10.0
VulDB Temp Score: 9.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Francis Provencher
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: Netware 6.5

Snort ID: 2185
Snort Message: PROTOCOL-RPC mountd UDP mount path overflow attempt
Snort Class: 🔍
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

SourceFire IPS: 🔍
PaloAlto IPS: 🔍
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Timelineinfo

11/10/2010 🔍
02/18/2011 +100 days 🔍
02/18/2011 +0 days 🔍
02/18/2011 +0 days 🔍
02/18/2011 +0 days 🔍
02/24/2011 +5 days 🔍
02/24/2011 +0 days 🔍
02/25/2011 +1 days 🔍
03/12/2011 +15 days 🔍
04/03/2011 +21 days 🔍
03/20/2015 +1447 days 🔍
12/29/2024 +3572 days 🔍

Sourcesinfo

Vendor: novell.com

Advisory: download.novell.com
Researcher: Francis Provencher
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2010-4227 (🔍)
GCVE (CVE): GCVE-0-2010-4227
GCVE (VulDB): GCVE-100-56631
X-Force: 65625
SecurityFocus: 46535 - Novell Netware 'XNFS.NLM' Component Remote Code Execution Vulnerability
Secunia: 43431
OSVDB: 71408 - Novell Netware XNFS.NLM xdrDecodeString() Function Overflow
SecurityTracker: 1025119
Vulnerability Center: 30761 - Novell Netware 6.5 before SP8 Remote DoS or Arbitrary Code Execution Vulnerability, High

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 03/20/2015 16:16
Updated: 12/29/2024 23:16
Changes: 03/20/2015 16:16 (65), 03/20/2017 09:26 (18), 10/18/2021 09:17 (4), 12/29/2024 23:16 (15)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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