VDB-131813 · CVE-2018-20174 · BID 106938

rdesktop up to 1.8.3 ui_clip_handle_data out-of-bounds

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.4$0-$5k0.00

Summaryinfo

A vulnerability has been found in rdesktop up to 1.8.3 and classified as critical. Affected by this vulnerability is the function ui_clip_handle_data. The manipulation leads to out-of-bounds. This vulnerability is listed as CVE-2018-20174. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in rdesktop up to 1.8.3. It has been rated as critical. This issue affects the function ui_clip_handle_data. 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, integrity, and availability. The summary by CVE is:

rdesktop versions up to and including v1.8.3 contain an Out-Of-Bounds Read in the function ui_clip_handle_data() that results in an information leak.

The bug was discovered 02/05/2019. The weakness was presented 03/15/2019 (Website). The advisory is shared at research.checkpoint.com. The identification of this vulnerability is CVE-2018-20174 since 12/17/2018. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 38 days. During that time the estimated underground price was around $0-$5k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 277595 (Fedora Security Update for rdesktop (FEDORA-2019-5146cd34e2)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 106938†). See VDB-127328, VDB-127329, VDB-127330 and VDB-127331 for similar entries. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: 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: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Patch: github.com

Timelineinfo

12/17/2018 🔍
02/05/2019 +50 days 🔍
02/05/2019 +0 days 🔍
03/15/2019 +38 days 🔍
03/16/2019 +1 days 🔍
08/01/2023 +1599 days 🔍

Sourcesinfo

Product: github.com

Advisory: 4dca546d04321a610c1835010b5dad85163b65e1
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-20174 (🔍)
GCVE (CVE): GCVE-0-2018-20174
GCVE (VulDB): GCVE-100-131813
SecurityFocus: 106938 - RDP Client 'FreeRDP' And 'rdesktop' Multiple Security Vulnerabilities

See also: 🔍

Entryinfo

Created: 03/16/2019 07:47
Updated: 08/01/2023 17:39
Changes: 03/16/2019 07:47 (59), 05/17/2020 08:59 (4), 08/01/2023 17:31 (4), 08/01/2023 17:39 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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