Contiki-NG up to 4.5 SNMP Agent SNMP Request out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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8.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Contiki-NG up to 4.5. It has been declared as critical. This impacts an unknown function of the component SNMP Agent. The manipulation as part of SNMP Request results in out-of-bounds write. This vulnerability is identified as CVE-2020-14934. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in Contiki-NG up to 4.5. It has been classified as critical. Affected is some unknown processing of the component SNMP Agent. The manipulation as part of a SNMP Request leads to a out-of-bounds write vulnerability. CWE is classifying the issue as CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Buffer overflows were discovered in Contiki-NG 4.4 through 4.5, in the SNMP agent. The function parsing the received SNMP request does not verify the input message's requested variables against the capacity of the internal SNMP engine buffer. If the number of variables in the request exceeds the allocated buffer, a memory write out of the buffer boundaries occurs. This write operation provides a possibility to overwrite other variables allocated in the .bss section by the application. Because the sender of the frame is in control of the content that will be written beyond the buffer limits, and there is no strict process memory separation, this issue may allow overwriting of sensitive memory areas of an IoT device.

The weakness was released 08/18/2020. This vulnerability is traded as CVE-2020-14934 since 06/21/2020. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Entries connected to this vulnerability are available at VDB-160029, VDB-160028 and VDB-160027. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

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

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / 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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/21/2020 🔍
08/18/2020 +58 days 🔍
08/19/2020 +1 days 🔍
08/19/2020 +0 days 🔍

Sourcesinfo

Status: Not defined

CVE: CVE-2020-14934 (🔍)
GCVE (CVE): GCVE-0-2020-14934
GCVE (VulDB): GCVE-100-160026
See also: 🔍

Entryinfo

Created: 08/19/2020 06:27
Updated: 08/19/2020 06:32
Changes: 08/19/2020 06:27 (36), 08/19/2020 06:32 (17)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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