Cisco AnyConnect Secure Mobility Client 4.0(48) vpnapi.dll ConnectVpn memory corruption

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
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6.4$0-$5k0.00

A vulnerability was found in Cisco AnyConnect Secure Mobility Client 4.0(48) (Network Encryption Software). It has been classified as critical. Affected is the function ConnectVpn in the library vpnapi.dll. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The software 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 weakness was presented 06/13/2015 (Website). The advisory is shared for download at zeroscience.mk. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 04/07/2019).

The vulnerability is also documented in the vulnerability database at X-Force (103855).

Productinfo

Type

Vendor

Name

License

  • commercial

CPE 2.3info

CPE 2.2info

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.4

VulDB Base Score: 7.3
VulDB Temp Score: 6.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Unproven
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

06/13/2015 🔍
06/16/2015 +3 days 🔍
04/07/2019 +1391 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: zeroscience.mk
Status: Confirmed
Confirmation: 🔍
X-Force: 103855 - Cisco AnyConnect Secure Mobility Client ConnectVpn buffer overflow

Entryinfo

Created: 06/16/2015 11:49 AM
Updated: 04/07/2019 10:55 AM
Changes: 06/16/2015 11:49 AM (39), 04/07/2019 10:55 AM (4)
Complete: 🔍

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