PT-2018-14846 · Unknown · Libiec61850

Fouzhe · Published 2018-11-12 · Updated 2020-08-24 · CVE-2018-19185

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions libIEC61850 version 1.3

Description A heap-based buffer overflow issue has been discovered in the BerEncoder encodeOctetString function, located in mms/asn1/ber encoder.c. This issue is exploitable and can be triggered with a different data sequence than a previously known attack vector.

Recommendations For libIEC61850 version 1.3, consider restricting access to the BerEncoder encodeOctetString function in ber encoder.c until a patch is available. Avoid using the BerEncoder encodeOctetString function with potentially malicious input to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2018-19185

Affected Products

Libiec61850

References · 4

• 🔥 https://github.com/mz-automation/libiec61850/issues/87 · Exploit
• 🔥 https://github.com/fouzhe/security/tree/master/libiec61850#another-heap-buffer-overflow-in-function-berencoder_encodeoctetstring · Exploit
• https://osv.dev/vulnerability/CVE-2018-19185 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-19185 · Security Note