CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
6.5 | $0-$5k | 0.00 |
A vulnerability was found in Tera Term up to 4.94. It has been rated as problematic. Affected by this issue is an unknown code block of the component DLL Loader. The manipulation with an unknown input leads to a untrusted search path vulnerability. Using CWE to declare the problem leads to CWE-426. The product searches for critical resources using an externally-supplied search path that can point to resources that are not under the product's direct control. Impacted is confidentiality, integrity, and availability. CVE summarizes:
Untrusted search path vulnerability in the installer of Tera Term 4.94 and earlier allows an attacker to gain privileges via a Trojan horse DLL in an unspecified directory.
The bug was discovered 06/01/2017. The weakness was disclosed 06/09/2017 (Website). The advisory is shared for download at jvn.jp. This vulnerability is handled as CVE-2017-2193 since 12/01/2016. The attack needs to be approached locally. The requirement for exploitation is a simple authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1574.
The vulnerability was handled as a non-public zero-day exploit for at least 8 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.
Product
Name
Version
- 4.0
- 4.1
- 4.2
- 4.3
- 4.4
- 4.5
- 4.6
- 4.7
- 4.8
- 4.9
- 4.10
- 4.11
- 4.12
- 4.13
- 4.14
- 4.15
- 4.16
- 4.17
- 4.18
- 4.19
- 4.20
- 4.21
- 4.22
- 4.23
- 4.24
- 4.25
- 4.26
- 4.27
- 4.28
- 4.29
- 4.30
- 4.31
- 4.32
- 4.33
- 4.34
- 4.35
- 4.36
- 4.37
- 4.38
- 4.39
- 4.40
- 4.41
- 4.42
- 4.43
- 4.44
- 4.45
- 4.46
- 4.47
- 4.48
- 4.49
- 4.50
- 4.51
- 4.52
- 4.53
- 4.54
- 4.55
- 4.56
- 4.57
- 4.58
- 4.59
- 4.60
- 4.61
- 4.62
- 4.63
- 4.64
- 4.65
- 4.66
- 4.67
- 4.68
- 4.69
- 4.70
- 4.71
- 4.72
- 4.73
- 4.74
- 4.75
- 4.76
- 4.77
- 4.78
- 4.79
- 4.80
- 4.81
- 4.82
- 4.83
- 4.84
- 4.85
- 4.86
- 4.87
- 4.88
- 4.89
- 4.90
- 4.91
- 4.92
- 4.93
- 4.94
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.5VulDB Meta Temp Score: 6.5
VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.8
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
---|---|---|---|---|---|
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
---|---|---|---|---|---|
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Untrusted search pathCWE: CWE-426
ATT&CK: T1574
Local: Yes
Remote: No
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
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 🔍06/01/2017 🔍
06/01/2017 🔍
06/09/2017 🔍
06/09/2017 🔍
06/10/2017 🔍
12/27/2020 🔍
Sources
Advisory: jvn.jpResearcher: Eili Masami
Status: Not defined
Confirmation: 🔍
CVE: CVE-2017-2193 (🔍)
SecurityFocus: 98807 - Tera Term Installer CVE-2017-2193 DLL Loading Remote Code Execution Vulnerability
Entry
Created: 06/10/2017 09:01Updated: 12/27/2020 06:39
Changes: 06/10/2017 09:01 (58), 10/16/2019 08:19 (4), 12/27/2020 06:39 (2)
Complete: 🔍
No comments yet. Languages: en.
Please log in to comment.