UltraVNC up to 1.0.1 log::reallyprint memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.5$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in UltraVNC up to 1.0.1. Affected by this issue is the function log::reallyprint. The manipulation leads to memory corruption. This vulnerability is referenced as CVE-2006-1652. Remote exploitation of the attack is possible. Furthermore, an exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in UltraVNC up to 1.0.1 (Connectivity Software) and classified as very critical. This issue affects the function log::reallyprint. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Multiple buffer overflows in (a) UltraVNC (aka Ultr@VNC) 1.0.1 and earlier and (b) tabbed_viewer 1.29 (1) allow user-assisted remote attackers to execute arbitrary code via a malicious server that sends a long string to a client that connects on TCP port 5900, which triggers an overflow in Log::ReallyPrint; and (2) allow remote attackers to cause a denial of service (server crash) via a long HTTP GET request to TCP port 5800, which triggers an overflow in VNCLog::ReallyPrint.

The weakness was published 04/06/2006 (Website). The advisory is shared at lists.grok.org.uk. The identification of this vulnerability is CVE-2006-1652. 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. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 06/22/2024).

The exploit is available at exploit-db.com. It is declared as highly functional. The vulnerability scanner Nessus provides a plugin with the ID 10320 (Web Server Long URL Handling Remote Overflow DoS), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Web Servers.

Upgrading eliminates this vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 4351.

The vulnerability is also documented in the databases at X-Force (25650), Exploit-DB (1642), Tenable (10320), SecurityFocus (BID 17378†) and Secunia (SA19513†). Similar entries are available at VDB-3807, VDB-15084, VDB-15253 and VDB-15734. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.5

VulDB Base Score: 10.0
VulDB Temp Score: 9.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Highly functional
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 10320
Nessus Name: Web Server Long URL Handling Remote Overflow DoS
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 102004
OpenVAS Name: www too long url
OpenVAS File: 🔍
OpenVAS Family: 🔍

MetaSploit ID: ultravnc_client.rb
MetaSploit Name: UltraVNC 1.0.1 Client Buffer Overflow
MetaSploit File: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

SourceFire IPS: 🔍
PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

04/04/2006 🔍
04/06/2006 +2 days 🔍
04/06/2006 +0 days 🔍
04/06/2006 +0 days 🔍
04/06/2006 +0 days 🔍
06/04/2006 +59 days 🔍
03/12/2015 +3203 days 🔍
06/22/2024 +3390 days 🔍

Sourcesinfo

Advisory: lists.grok.org.uk
Status: Not defined

CVE: CVE-2006-1652 (🔍)
GCVE (CVE): GCVE-0-2006-1652
GCVE (VulDB): GCVE-100-29525
X-Force: 25650
SecurityFocus: 17378
Secunia: 19513
Vulnerability Center: 11730 - UltraVNC \x26 tabbed_viewer Buffer Overflows, High

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

Entryinfo

Created: 03/12/2015 12:19
Updated: 06/22/2024 06:20
Changes: 03/12/2015 12:19 (43), 02/24/2017 13:10 (34), 07/08/2021 15:07 (2), 07/08/2021 15:13 (2), 07/08/2021 15:18 (1), 06/22/2024 06:20 (16)
Complete: 🔍
Cache ID: 216::103

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