Current Description
An issue was discovered in the Interpeak IPCOMShell TELNET server on Green Hills INTEGRITY RTOS 5.0.4. The main shell handler function uses the value of the environment variable ipcom.shell.greeting as the first argument to printf(). Setting this variable using the sysvar command results in a user-controlled format string during login, resulting in an information leak of memory addresses.
Source:
MITRE
View Analysis Description
Analysis Description
An issue was discovered in the Interpeak IPCOMShell TELNET server on Green Hills INTEGRITY RTOS 5.0.4. The main shell handler function uses the value of the environment variable ipcom.shell.greeting as the first argument to printf(). Setting this variable using the sysvar command results in a user-controlled format string during login, resulting in an information leak of memory addresses.
Source:
MITRE
Impact
CVSS v3.0 Severity and Metrics:
Base Score:
7.5 HIGH
Vector:
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
(V3 legend)
Impact Score:
3.6
Exploitability Score:
3.9
Attack Vector (AV):
Network
Attack Complexity (AC):
Low
Privileges Required (PR):
None
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
None
Availability (A):
None
CVSS v2.0 Severity and Metrics:
Base Score:
5.0 MEDIUM
Vector:
(AV:N/AC:L/Au:N/C:P/I:N/A:N)
(V2 legend)
Impact Subscore:
2.9
Exploitability Subscore:
10.0
Access Vector (AV):
Network
Access Complexity (AC):
Low
Authentication (AU):
None
Confidentiality (C):
Partial
Integrity (I):
None
Availability (A):
None
Additional Information:
Allows unauthorized disclosure of information
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Technical Details
Vulnerability Type
(View All)
- Format String Vulnerability (CWE-134)
Change History
2 change records found
- show changes
Reanalysis -
3/27/2019 10:28:51 AM
| Action |
Type |
Old Value |
New Value |
| Changed |
CPE Configuration |
OR
*cpe:2.3:a:ghs:integrity_rtos:5.0.4:*:*:*:*:*:*:* |
OR
*cpe:2.3:o:ghs:integrity_rtos:5.0.4:*:*:*:*:*:*:* |
Initial Analysis -
3/27/2019 9:27:18 AM
| Action |
Type |
Old Value |
New Value |
| Added |
CPE Configuration |
|
OR
*cpe:2.3:a:ghs:integrity_rtos:5.0.4:*:*:*:*:*:*:* |
| Added |
CVSS V2 |
|
(AV:N/AC:L/Au:N/C:P/I:N/A:N) |
| Added |
CVSS V3 |
|
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| Added |
CWE |
|
CWE-134 |
| Changed |
Reference Type |
https://github.com/bl4ckic3/GHS-Bugs No Types Assigned |
https://github.com/bl4ckic3/GHS-Bugs Third Party Advisory |
| Changed |
Reference Type |
https://www.ghs.com/products/rtos/integrity.html No Types Assigned |
https://www.ghs.com/products/rtos/integrity.html Vendor Advisory |