libIEC61850 1.3 mms/asn1/ber_encoder.c BerEncoder_encodeOctetString memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.5$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in libIEC61850 1.3. This affects the function BerEncoder_encodeOctetString of the file mms/asn1/ber_encoder.c. Such manipulation leads to memory corruption. This vulnerability is documented as CVE-2018-19185. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in libIEC61850 1.3. It has been rated as critical. Affected by this issue is the function BerEncoder_encodeOctetString of the file mms/asn1/ber_encoder.c. 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. CVE summarizes:

An issue has been found in libIEC61850 v1.3. It is a heap-based buffer overflow in BerEncoder_encodeOctetString in mms/asn1/ber_encoder.c. This is exploitable even after CVE-2018-18834 has been patched, with a different dataSetValue sequence than the CVE-2018-18834 attack vector.

The bug was discovered 11/11/2018. The weakness was released 11/12/2018 (Website). The advisory is shared for download at github.com. This vulnerability is handled as CVE-2018-19185 since 11/11/2018. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.

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 $0-$5k.

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

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

Version

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: 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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/11/2018 🔍
11/11/2018 +0 days 🔍
11/12/2018 +1 days 🔍
11/12/2018 +0 days 🔍
11/12/2018 +0 days 🔍
06/05/2023 +1666 days 🔍

Sourcesinfo

Advisory: 87
Status: Not defined

CVE: CVE-2018-19185 (🔍)
GCVE (CVE): GCVE-0-2018-19185
GCVE (VulDB): GCVE-100-126656

Entryinfo

Created: 11/12/2018 10:38
Updated: 06/05/2023 15:02
Changes: 11/12/2018 10:38 (56), 04/11/2020 16:35 (1), 06/05/2023 15:02 (3)
Complete: 🔍
Cache ID: 216::103

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