CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
9.3 | $0-$5k | 0.00 |
A vulnerability was found in PuTTY up to 0.67 (Connectivity Software). It has been declared as critical. Affected by this vulnerability is an unknown code block of the component SCP Command-Line Utility. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:
Stack-based buffer overflow in the SCP command-line utility in PuTTY before 0.67 and KiTTY 0.66.6.3 and earlier allows remote servers to cause a denial of service (stack memory corruption) or execute arbitrary code via a crafted SCP-SINK file-size response to an SCP download request.
The weakness was shared 04/07/2016 by tintinweb (Website). The advisory is shared at lists.opensuse.org. This vulnerability is known as CVE-2016-2563 since 02/25/2016. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are unknown but a public exploit is available.
It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 89727 (FreeBSD : PuTTY - old-style scp downloads may allow remote code execution (7f0fbb30-e462-11e5-a3f3-080027ef73ec)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370344 (PuTTY SCP Sink Protocol Arbitrary Code Execution Vulnerability).
Upgrading eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.
The vulnerability is also documented in the databases at Tenable (89727) and Exploit-DB (39551).
Product
Type
Name
Version
- 0.1
- 0.2
- 0.3
- 0.4
- 0.5
- 0.6
- 0.7
- 0.8
- 0.9
- 0.10
- 0.11
- 0.12
- 0.13
- 0.14
- 0.15
- 0.16
- 0.17
- 0.18
- 0.19
- 0.20
- 0.21
- 0.22
- 0.23
- 0.24
- 0.25
- 0.26
- 0.27
- 0.28
- 0.29
- 0.30
- 0.31
- 0.32
- 0.33
- 0.34
- 0.35
- 0.36
- 0.37
- 0.38
- 0.39
- 0.40
- 0.41
- 0.42
- 0.43
- 0.44
- 0.45
- 0.46
- 0.47
- 0.48
- 0.49
- 0.50
- 0.51
- 0.52
- 0.53
- 0.54
- 0.55
- 0.56
- 0.57
- 0.58
- 0.59
- 0.60
- 0.61
- 0.62
- 0.63
- 0.64
- 0.65
- 0.66
- 0.67
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 9.8VulDB Meta Temp Score: 9.3
VulDB Base Score: 9.8
VulDB Temp Score: 8.8
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 9.8
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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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: Memory corruptionCWE: CWE-119
ATT&CK: Unknown
Local: No
Remote: Yes
Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Today | unlock | unlock | unlock | unlock |
Nessus ID: 89727
Nessus Name: FreeBSD : PuTTY - old-style scp downloads may allow remote code execution (7f0fbb30-e462-11e5-a3f3-080027ef73ec)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
OpenVAS ID: 100935
OpenVAS Name: PuTTY Denial Of Service Vulnerability April16 (Windows)
OpenVAS File: 🔍
OpenVAS Family: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Exploit-DB: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Timeline
02/25/2016 🔍03/06/2016 🔍
03/07/2016 🔍
03/08/2016 🔍
03/08/2016 🔍
04/07/2016 🔍
04/07/2016 🔍
04/08/2016 🔍
04/12/2016 🔍
07/12/2022 🔍
Sources
Advisory: lists.opensuse.orgResearcher: tintinweb
Status: Not defined
Confirmation: 🔍
CVE: CVE-2016-2563 (🔍)
SecurityTracker: 1035257
Vulnerability Center: 58065 - PuTTY <0.67 and KiTTY <=0.66.6.3 Remote DoS or Code Execution due to Stack-Based Buffer Overflow Vulnerability, Medium
SecurityFocus: 84296 - PuTTY CVE-2016-2563 Multiple Buffer Overflow Vulnerabilities
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 04/08/2016 10:44Updated: 07/12/2022 13:20
Changes: 04/08/2016 10:44 (68), 02/04/2019 11:37 (18), 07/12/2022 13:20 (3)
Complete: 🔍
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