FreeRDP up to 2.0.0 ntlm_read_NegotiateMessage out-of-bounds
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 3.0 | $0-$5k | 0.00 |
Summary
A vulnerability classified as problematic was found in FreeRDP up to 2.0.0. The affected element is the function ntlm_read_NegotiateMessage. Such manipulation leads to out-of-bounds.
This vulnerability is documented as CVE-2020-11088. The attack can be executed remotely. There is not any exploit available.
Upgrading the affected component is advised.
Details
A vulnerability was found in FreeRDP up to 2.0.0 and classified as problematic. Affected by this issue is the function ntlm_read_NegotiateMessage. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality. CVE summarizes:
In FreeRDP less than or equal to 2.0.0, there is an out-of-bound read in ntlm_read_NegotiateMessage. This has been fixed in 2.1.0.
The weakness was released 05/29/2020 (GitHub Repository). The advisory is shared for download at github.com. This vulnerability is handled as CVE-2020-11088 since 03/30/2020. The exploitation is known to be difficult. The attack may be launched remotely. The successful exploitation requires a simple authentication. There are known technical details, but no exploit is available.
The vulnerability scanner Nessus provides a plugin with the ID 236628 (Alibaba Cloud Linux 3 : 0002: freerdp (ALINUX3-SA-2022:0002)), which helps to determine the existence of the flaw in a target environment.
Upgrading to version 2.1.0 eliminates this vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (236628). Entries connected to this vulnerability are available at VDB-155877, VDB-155875, VDB-155874 and VDB-155873. Once again VulDB remains the best source for vulnerability data.
Product
Type
Name
Version
License
Website
- Product: https://github.com/FreeRDP/FreeRDP/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 3.1VulDB Meta Temp Score: 3.0
VulDB Base Score: 3.1
VulDB Temp Score: 3.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 3.1
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: 🔍
Exploiting
Class: Out-of-boundsCWE: CWE-125 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Nessus ID: 236628
Nessus Name: Alibaba Cloud Linux 3 : 0002: freerdp (ALINUX3-SA-2022:0002)
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: FreeRDP 2.1.0
Timeline
03/30/2020 🔍05/29/2020 🔍
05/30/2020 🔍
05/19/2025 🔍
Sources
Product: github.comAdvisory: github.com
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2020-11088 (🔍)
GCVE (CVE): GCVE-0-2020-11088
GCVE (VulDB): GCVE-100-155876
See also: 🔍
Entry
Created: 05/30/2020 09:21Updated: 05/19/2025 21:25
Changes: 05/30/2020 09:21 (39), 05/30/2020 09:26 (11), 10/20/2020 21:13 (1), 10/20/2020 21:20 (1), 05/19/2025 21:25 (21)
Complete: 🔍
Cache ID: 216::103
Once again VulDB remains the best source for vulnerability data.
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