Cisco IOS 11.1/11.2/11.3 TFTP Server filename 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 identified as critical has been detected in Cisco IOS 11.1/11.2/11.3. Affected is an unknown function of the component TFTP Server. Performing a manipulation of the argument filename results in memory corruption. This vulnerability is cataloged as CVE-2002-0813. Furthermore, there is an exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Cisco IOS 11.1/11.2/11.3 (Router Operating System). It has been classified as critical. This affects some unknown functionality of the component TFTP Server. The manipulation of the argument filename 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:

Heap-based buffer overflow in the TFTP server capability in Cisco IOS 11.1, 11.2, and 11.3 allows remote attackers to cause a denial of service (reset) or modify configuration via a long filename.

The bug was discovered 06/29/2002. The weakness was shared 07/25/2002 with Phenoelit (Website). It is possible to read the advisory at cisco.com. This vulnerability is uniquely identified as CVE-2002-0813. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details and a public exploit are known.

The exploit is shared for download at securityfocus.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 26 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 18264 (TFTPD Server Filename Handling Remote Overflow), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gain a shell remotely and running in the context r.

Upgrading eliminates this vulnerability. Attack attempts may be identified with Snort ID 1941.

The vulnerability is also documented in the databases at X-Force (9700), Exploit-DB (21655), Tenable (18264), SecurityFocus (BID 5328†) and OSVDB (854†). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Vendor

Name

Version

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Website

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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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: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 18264
Nessus Name: TFTPD Server Filename Handling Remote Overflow
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 18264
OpenVAS Name: get_kb_item(tftp/+port+/filename/+i
OpenVAS File: 🔍
OpenVAS Family: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
Snort ID: 1941
Snort Message: PROTOCOL-TFTP GET filename overflow attempt
Snort Class: 🔍

Suricata ID: 2101941
Suricata Class: 🔍
Suricata Message: 🔍
SourceFire IPS: 🔍
ISS Proventia IPS: 🔍

Timelineinfo

06/29/2002 🔍
07/25/2002 +26 days 🔍
07/26/2002 +1 days 🔍
07/27/2002 +1 days 🔍
08/12/2002 +16 days 🔍
02/09/2003 +181 days 🔍
02/18/2003 +9 days 🔍
05/16/2005 +817 days 🔍
07/22/2014 +3354 days 🔍
09/08/2024 +3701 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco.com
Organization: Phenoelit
Status: Not defined

CVE: CVE-2002-0813 (🔍)
GCVE (CVE): GCVE-0-2002-0813
GCVE (VulDB): GCVE-100-18699

OVAL: 🔍

X-Force: 9700
SecurityFocus: 5328 - Cisco IOS TFTP Server Long File Name Buffer Overflow Vulnerability
OSVDB: 854 - Cisco TFTP Server Long Filename DoS
Vulnerability Center: 889 - [cisco-sa-20020730-ioc-tftp-lfn] Cisco IOS TFTP Server Long File Name Buffer Overflow Vulnerability, High

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

Entryinfo

Created: 07/23/2014 00:01
Updated: 09/08/2024 17:24
Changes: 07/23/2014 00:01 (82), 05/09/2019 11:12 (6), 09/08/2024 17:24 (16)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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