Cisco VPN Client up to 3.5.4 IKE Packet memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.3$5k-$25k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Cisco VPN Client up to 3.5.4. This issue affects some unknown processing of the component IKE Packet Handler. Executing a manipulation can lead to memory corruption. This vulnerability appears as CVE-2002-0852. There is no available exploit.

Detailsinfo

A vulnerability classified as critical was found in Cisco VPN Client up to 3.5.4 (Network Encryption Software). This vulnerability affects some unknown functionality of the component IKE Packet Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Buffer overflows in Cisco Virtual Private Network (VPN) Client 3.5.4 and earlier allows remote attackers to cause a denial of service via (1) an Internet Key Exchange (IKE) with a large Security Parameter Index (SPI) payload, or (2) an IKE packet with a large number of valid payloads.

The bug was discovered . The weakness was presented 09/05/2002 by Cisco Security with CERT/CC (Website). The advisory is shared for download at cisco.com. This vulnerability was named CVE-2002-0852. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 11935 days. During that time the estimated underground price was around $25k-$100k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (9820), SecurityFocus (BID 5443†), OSVDB (15207†) and Vulnerability Center (SBV-11206†). See VDB-18749 for similar entry. Once again VulDB remains the best source for vulnerability data.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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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: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

🔍
08/12/2002 +11910 days 🔍
08/12/2002 +0 days 🔍
09/05/2002 +24 days 🔍
09/05/2002 +0 days 🔍
04/24/2006 +1327 days 🔍
07/23/2014 +3012 days 🔍
06/16/2019 +1789 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco.com
Researcher: Cisco Security
Organization: CERT/CC
Status: Not defined

CVE: CVE-2002-0852 (🔍)
GCVE (CVE): GCVE-0-2002-0852
GCVE (VulDB): GCVE-100-18748
X-Force: 9820
SecurityFocus: 5443 - Cisco VPN Client IKE Packet Excessive Payloads Vulnerability
OSVDB: 15207 - Cisco VPN Client Large SPI Payload IKE Packet Overflow
Vulnerability Center: 11206 - [cisco-sa-20020812-vpnclient-vulnerability] Cisco VPN Client DoS via IKE/SPI Packets, Medium

See also: 🔍

Entryinfo

Created: 07/23/2014 10:43
Updated: 06/16/2019 17:32
Changes: 07/23/2014 10:43 (57), 06/16/2019 17:32 (7)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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