Apple iOS up to 8.4.1 Kernel Routing input validation

CVSS Meta Temp Score
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CTI Interest Score
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4.1$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Apple iOS up to 8.4.1. Impacted is an unknown function of the component Kernel. This manipulation causes input validation (Routing). This vulnerability is tracked as CVE-2015-5869. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in Apple iOS up to 8.4.1 (Smartphone Operating System). Affected by this vulnerability is some unknown processing of the component Kernel. The manipulation with an unknown input leads to a input validation vulnerability (Routing). The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect availability. The summary by CVE is:

The Neighbor Discovery (ND) protocol implementation in the IPv6 stack in Apple iOS before 9 allows remote attackers to reconfigure a hop-limit setting via a small hop_limit value in a Router Advertisement (RA) message.

The weakness was disclosed 09/16/2015 by Dennis Spindel Ljungmark (beist) as HT205212 as confirmed advisory (Website). The advisory is shared at support.apple.com. This vulnerability is known as CVE-2015-5869 since 08/06/2015. Access to the local network is required for this attack to succeed. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 11/21/2024). It is expected to see the exploit prices for this product increasing in the near future. The advisory points out:

An insufficient validation issue existed in handling of IPv6 router advertisements that allowed an attacker to set the hop limit to an arbitrary value. This issue was addressed by enforcing a minimum hop limit.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 370192 (Apple Mac OS X v10.11 Not Installed (APPLE-SA-2015-09-30-3)).

Upgrading to version 9 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 76764†). The entries VDB-9015, VDB-68413, VDB-77828 and VDB-77762 are pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Name: Routing
Class: Input validation / Routing
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: iOS 9

Timelineinfo

08/06/2015 🔍
09/16/2015 +41 days 🔍
09/16/2015 +0 days 🔍
09/16/2015 +0 days 🔍
09/18/2015 +2 days 🔍
09/18/2015 +0 days 🔍
11/21/2024 +3352 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT205212
Researcher: Dennis Spindel Ljungmark (beist)
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-5869 (🔍)
GCVE (CVE): GCVE-0-2015-5869
GCVE (VulDB): GCVE-100-77797
SecurityFocus: 76764 - Apple iOS APPLE-SA-2015-09-16-1 Multiple Security Vulnerabilities
SecurityTracker: 1033609

scip Labs: https://www.scip.ch/en/?labs.20150917
See also: 🔍

Entryinfo

Created: 09/18/2015 13:09
Updated: 11/21/2024 17:49
Changes: 09/18/2015 13:09 (50), 12/25/2017 12:31 (15), 06/16/2022 08:31 (3), 11/21/2024 17:49 (16)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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