VDB-114263 · CVE-2016-8786 · sa-20161228-01

Huawei S12700/S5700/S7700/S9700 RSVP Packet input validation

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 (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.4	$5k-$25k	0.00

Summaryinfo

A vulnerability identified as critical has been detected in Huawei S12700, S5700, S7700 and S9700. The affected element is an unknown function of the component RSVP Handler. The manipulation as part of Packet leads to input validation. This vulnerability is listed as CVE-2016-8786. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in Huawei S12700, S5700, S7700 and S9700 (affected version not known). It has been rated as critical. This issue affects some unknown functionality of the component RSVP Handler. The manipulation as part of a Packet leads to a input validation vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Huawei S12700 V200R005C00, V200R006C00, V200R007C00, V200R008C00, S5700 V200R006C00, V200R007C00, V200R008C00, S6700 V200R008C00, S7700 V200R001C00, V200R002C00, V200R003C00, V200R005C00, V200R006C00, V200R007C00, V200R008C00, S9700 V200R001C00, V200R002C00, V200R003C00, V200R005C00, V200R006C00, V200R007C00, V200R008C00 have a denial of service (DoS) vulnerability. Due to the lack of input validation, a remote attacker may craft a malformed Resource Reservation Protocol (RSVP) packet and send it to the device, causing a few buffer overflows and occasional device restart.

The bug was discovered 12/25/2016. The weakness was presented 03/09/2018 with Huawei (Website). It is possible to read the advisory at huawei.com. The identification of this vulnerability is CVE-2016-8786 since 10/18/2016. 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 pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 02/17/2023).

The vulnerability was handled as a non-public zero-day exploit for at least 439 days. During that time the estimated underground price was around $5k-$25k.

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 vulnerability database at SecurityFocus (BID 95139†). See VDB-114262 for similar entry. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Huawei

Name

License

commercial

Website

Vendor: https://www.huawei.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.4

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

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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: 🔍

NVD Base Score: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

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 Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/18/2016 🔍
12/25/2016 +68 days 🔍
12/28/2016 +3 days 🔍
03/09/2018 +436 days 🔍
03/09/2018 +0 days 🔍
03/10/2018 +1 days 🔍
02/17/2023 +1805 days 🔍

Sourcesinfo

Vendor: huawei.com

Advisory: sa-20161228-01
Organization: Huawei
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-8786 (🔍)
GCVE (CVE): GCVE-0-2016-8786
GCVE (VulDB): GCVE-100-114263
SecurityFocus: 95139 - Multiple Huawei Products CVE-2016-8786 Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 03/10/2018 15:25
Updated: 02/17/2023 19:16
Changes: 03/10/2018 15:25 (59), 01/11/2020 19:29 (5), 02/17/2023 19:16 (3)
Complete: 🔍
Cache ID: 216::103