CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
8.0 | $0-$5k | 0.00 |
A vulnerability classified as critical has been found in JustSystems Ichitaro Office (version now known). This affects some unknown processing of the component Excel File Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:
When processing a record type of 0x3c from a Workbook stream from an Excel file (.xls), JustSystems Ichitaro Office trusts that the size is greater than zero, subtracts one from the length, and uses this result as the size for a memcpy. This results in a heap-based buffer overflow and can lead to code execution under the context of the application.
The bug was discovered 02/24/2017. The weakness was shared 02/24/2017 by Cisco with Cisco Talos (Website). It is possible to read the advisory at talosintelligence.com. This vulnerability is uniquely identified as CVE-2017-2790 since 12/01/2016. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
The entries 97300 and 97298 are related to this item.
Product
Vendor
Name
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 8.0VulDB Meta Temp Score: 8.0
VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 9.8
NVD Vector: 🔍
CVSSv2
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Memory corruptionCWE: CWE-119
ATT&CK: Unknown
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Timeline
12/01/2016 🔍02/24/2017 🔍
02/24/2017 🔍
02/24/2017 🔍
02/24/2017 🔍
02/25/2017 🔍
09/02/2020 🔍
Sources
Advisory: talosintelligence.comResearcher: Cisco
Organization: Cisco Talos
Status: Not defined
CVE: CVE-2017-2790 (🔍)
SecurityFocus: 96442 - JustSystems Ichitaro CVE-2017-2790 Heap-Based Buffer Overflow Vulnerability
OSVDB: - CVE-2017-2790 - JustSystems - Ichitaro Office - Buffer Overflow Issue
See also: 🔍
Entry
Created: 02/25/2017 09:58Updated: 09/02/2020 14:32
Changes: 02/25/2017 09:58 (58), 09/02/2020 14:32 (5)
Complete: 🔍
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