Cisco AnyConnect Secure Mobility Client on Linux/macOS Interprocess Communication toctou
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
6.8 | $0-$5k | 0.00 |
A vulnerability was found in Cisco AnyConnect Secure Mobility Client on Linux/macOS (Network Encryption Software) (version unknown). It has been classified as critical. This affects an unknown function of the component Interprocess Communication Handler. The manipulation with an unknown input leads to a toctou vulnerability. CWE is classifying the issue as CWE-367. The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check. This can cause the product to perform invalid actions when the resource is in an unexpected state. This is going to have an impact on confidentiality, integrity, and availability.
The weakness was shared 10/07/2021 as cisco-sa-anyconnect-lib-hija-cAFB7x4q. It is possible to read the advisory at tools.cisco.com. This vulnerability is uniquely identified as CVE-2021-34788 since 06/15/2021. The technical details are unknown and an exploit is not publicly available.
Upgrading eliminates this vulnerability.
Product
Type
Vendor
Name
License
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.0VulDB Meta Temp Score: 6.8
VulDB Base Score: 7.0
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍
CNA Base Score: 7.0
CNA Vector (Cisco Systems, Inc.): 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: ToctouCWE: CWE-367 / CWE-362
CAPEC: 🔍
ATT&CK: 🔍
Local: Yes
Remote: No
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Timeline
06/15/2021 🔍10/07/2021 🔍
10/07/2021 🔍
10/09/2021 🔍
Sources
Vendor: cisco.comAdvisory: cisco-sa-anyconnect-lib-hija-cAFB7x4q
Status: Confirmed
CVE: CVE-2021-34788 (🔍)
Entry
Created: 10/07/2021 07:53Updated: 10/09/2021 18:17
Changes: 10/07/2021 07:53 (50), 10/09/2021 18:17 (1)
Complete: 🔍
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