Broadcom BCM4355C0 9.44.78.27.0.1.56 Fast Transition Frame memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Broadcom BCM4355C0 9.44.78.27.0.1.56. Affected by this vulnerability is an unknown functionality of the component Fast Transition Frame Handler. The manipulation leads to memory corruption. This vulnerability is referenced as CVE-2017-11121. Remote exploitation of the attack is possible. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Broadcom BCM4355C0 9.44.78.27.0.1.56 and classified as critical. This issue affects an unknown code of the component Fast Transition Frame Handler. 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:

On Broadcom BCM4355C0 Wi-Fi chips 9.44.78.27.0.1.56 and other chips, properly crafted malicious over-the-air Fast Transition frames can potentially trigger internal Wi-Fi firmware heap and/or stack overflows, leading to denial of service or other effects, aka B-V2017061205.

The bug was discovered 07/12/2017. The weakness was published 09/28/2017 by Gal Beniamini with Google Project Zero (Website). It is possible to read the advisory at lists.apple.com. The identification of this vulnerability is CVE-2017-11121 since 07/09/2017. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 72 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 103419 (Apple TV < 11 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Misc. and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 371700 (Broadcom WiFi Buffer Overflow Vulnerability (LEN-17237)).

Upgrading eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (103419) and SecurityFocus (BID 100984†). Similar entries are available at VDB-101269, VDB-101388, VDB-101623 and VDB-106244. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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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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Nessus ID: 103419
Nessus Name: Apple TV < 11 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

07/09/2017 🔍
07/12/2017 +3 days 🔍
09/22/2017 +72 days 🔍
09/22/2017 +0 days 🔍
09/25/2017 +3 days 🔍
09/27/2017 +2 days 🔍
09/28/2017 +1 days 🔍
09/28/2017 +0 days 🔍
12/30/2022 +1919 days 🔍

Sourcesinfo

Advisory: 144329
Researcher: Gal Beniamini
Organization: Google Project Zero
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-11121 (🔍)
GCVE (CVE): GCVE-0-2017-11121
GCVE (VulDB): GCVE-100-107195
SecurityFocus: 100984 - Apple iOS and tvOS Wi-Fi Chip Multiple Arbitray Code Execution Vulnerabilities

See also: 🔍

Entryinfo

Created: 09/28/2017 11:10
Updated: 12/30/2022 10:35
Changes: 09/28/2017 11:10 (70), 11/20/2019 08:59 (7), 12/30/2022 10:35 (4)
Complete: 🔍
Cache ID: 216::103

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

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