VDB-106217 · CVE-2017-12217 · BID 100642

Cisco ASR 5000 GPRS input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.3$5k-$25k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Cisco ASR 5000. Affected by this issue is some unknown functionality of the component GPRS Handler. The manipulation leads to input validation. This vulnerability is uniquely identified as CVE-2017-12217. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in Cisco ASR 5000 (Router Operating System) (version now known). It has been rated as problematic. This issue affects some unknown processing of the component GPRS Handler. The manipulation with an unknown input 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 availability. The summary by CVE is:

A vulnerability in the General Packet Radio Service (GPRS) Tunneling Protocol ingress packet handler of Cisco ASR 5500 System Architecture Evolution (SAE) Gateways could allow an unauthenticated, remote attacker to cause a partial denial of service (DoS) condition on an affected device. The vulnerability is due to improper input validation of GPRS Tunneling Protocol packet headers. An attacker could exploit this vulnerability by sending a malformed GPRS Tunneling Protocol packet to an affected device. A successful exploit could allow the attacker to cause the GTPUMGR process on an affected device to restart unexpectedly, resulting in a partial DoS condition. If the GTPUMGR process restarts, there could be a brief impact on traffic passing through the device. Cisco Bug IDs: CSCve07119.

The bug was discovered 09/06/2017. The weakness was disclosed 09/07/2017 with Cisco as cisco-sa-20170906-asr as confirmed advisory (Website). The advisory is shared at tools.cisco.com. The identification of this vulnerability is CVE-2017-12217 since 08/03/2017. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 01/11/2021).

The vulnerability was handled as a non-public zero-day exploit for at least 1 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 100642†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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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: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/03/2017 🔍
09/06/2017 +34 days 🔍
09/06/2017 +0 days 🔍
09/07/2017 +1 days 🔍
09/07/2017 +0 days 🔍
09/08/2017 +1 days 🔍
01/11/2021 +1221 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20170906-asr
Researcher: Cisco
Organization: Cisco
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-12217 (🔍)
GCVE (CVE): GCVE-0-2017-12217
GCVE (VulDB): GCVE-100-106217
SecurityFocus: 100642 - Cisco ASR 5500 System Architecture Evolution Gateway CVE-2017-12217 Denial of Service Vulnerability
SecurityTracker: 1039276

Entryinfo

Created: 09/08/2017 11:56
Updated: 01/11/2021 09:06
Changes: 09/08/2017 11:56 (54), 11/13/2019 15:52 (11), 01/11/2021 09:01 (3), 01/11/2021 09:06 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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