Patchfirst
CVE-2024-57727 KEVRansomwarePublic exploit High · 7.5 EPSS 96.8%

SimpleHelp Path Traversal Vulnerability

SimpleHelp · SimpleHelp

Summary

The SimpleHelp remote support software, version 5.5.7 and earlier, contains multiple path traversal flaws in how it handles pathnames, where the server fails to restrict file access to an intended directory. An unauthenticated remote attacker can exploit these by sending crafted HTTP requests to download arbitrary files from the SimpleHelp host, including server configuration files holding secrets and hashed user passwords.

Official description · NVD

SimpleHelp remote support software v5.5.7 and before is vulnerable to multiple path traversal vulnerabilities that enable unauthenticated remote attackers to download arbitrary files from the SimpleHelp host via crafted HTTP requests. These files include server configuration files containing various secrets and hashed user passwords.

Breakdown
78.2 / 100
Exploited
Yes, in CISA KEV
Reports
0
Tactics
3/15

How an attack unfolds

Based on mappings. Select a step to see the evidence.
  1. How attackers get in

  2. What they do

  3. What can follow

First seen exploited 16 days after disclosure. Public exploit code (Metasploit) was available 3 days before disclosure.

  1. Public exploit codeMetasploit3 days before
  2. Disclosedday 0
  3. First seen exploitedVulnCheck KEV evidence+16 days
  4. Added to CISA KEVknown ransomware use; EU database agrees+29 days

CISA KEV listing is when exploitation was confirmed, not necessarily the first attack.

techniques

5 , grouped by in kill-chain order 5

Initial AccessTA0001

MITRE CTID mapping of the KEV entry · how it is exploited

Due to improper handling of HTTP request input, attackers can exploit a path traversal vulnerability in SimpleHelp version 5.5.7 and prior to gain access to critical user data stored in SimpleHelp, such as credentials. From there, with the credentials, they can further compromise the system, such as with code execution.

ExecutionTA0002

MITRE CTID mapping of the KEV entry · follow-on activity

Credential AccessTA0006

MITRE CTID mapping of the KEV entry · primary impact
MITRE CTID mapping of the KEV entry · primary impact
Private Keys T1552.004
MITRE CTID mapping of the KEV entry · primary impact

Detection

0 rules for this CVE · 312 general rules for its techniques

Rules for this CVE

0 that reference CVE-2024-57727 directly.

CVE-specific rules are not available in this build. Search SigmaHQ ↗

General rules for this CVE’s techniques

These detect the technique in general, not this specific vulnerability.

Exploit Public-Facing ApplicationT1190149 general rules
OS Credential DumpingT100337 general rules
Credentials In FilesT1552.00124 general rules
Private KeysT1552.0047 general rules
Command and Scripting InterpreterT105995 general rules

Sigma rules © SigmaHQ, Detection Rule License 1.1; linked, not reproduced.

What security researchers reported

Not named in any threat report yet

Also mentioned in 50 community threat pulses (AlienVault OTX)

Weaker evidence

Pulses are indicator collections that anyone can publish. A mention is not confirmation of exploitation.

References

3 links, grouped by NVD tag
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