Vulnerability Details : CVE-2019-1785
A vulnerability in the RAR file scanning functionality of Clam AntiVirus (ClamAV) Software versions 0.101.1 and 0.101.0 could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. The vulnerability is due to a lack of proper error-handling mechanisms when processing nested RAR files sent to an affected device. An attacker could exploit this vulnerability by sending a crafted RAR file to an affected device. An exploit could allow the attacker to view or create arbitrary files on the targeted system.
Vulnerability category: Directory traversalInput validationDenial of service
Exploit prediction scoring system (EPSS) score for CVE-2019-1785
Probability of exploitation activity in the next 30 days: 0.11%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 43 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2019-1785
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
NIST |
|
9.8
|
CRITICAL | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
Cisco Systems, Inc. |
|
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST |
CWE ids for CVE-2019-1785
-
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.Assigned by: ykramarz@cisco.com (Secondary)
-
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-1785
-
https://bugzilla.clamav.net/show_bug.cgi?id=12284
Bug 12284 – cli_gentemp_with_prefix traversalIssue Tracking;Third Party Advisory
-
https://security.gentoo.org/glsa/201904-12
ClamAV: Multiple vulnerabilities (GLSA 201904-12) — Gentoo securityThird Party Advisory
Products affected by CVE-2019-1785
- cpe:2.3:a:clamav:clamav:0.101.0:*:*:*:*:*:*:*
- cpe:2.3:a:clamav:clamav:0.101.1:*:*:*:*:*:*:*