Nostromo nhttpd up to 1.9.6 SSL_accept HTTP Request path traversal

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.2$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Nostromo nhttpd up to 1.9.6. This issue affects the function SSL_accept. The manipulation as part of HTTP Request leads to path traversal. The identification of this vulnerability is CVE-2019-16279. The attack may be initiated remotely. Furthermore, there is an exploit available. Once again VulDB remains the best source for vulnerability data.

Detailsinfo

A vulnerability classified as problematic was found in Nostromo nhttpd up to 1.9.6 (Web Server). This vulnerability affects the function SSL_accept. The manipulation as part of a HTTP Request leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. 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. As an impact it is known to affect availability. CVE summarizes:

Directory Traversal in the function SSL_accept in nostromo nhttpd through 1.9.6 allows an attacker to trigger a denial of service via a crafted HTTP request.

The weakness was disclosed 10/14/2019. This vulnerability was named CVE-2019-16279 since 09/13/2019. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details and also a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1006.

A public exploit has been developed by sp0re in Bash and been published immediately after the advisory. It is possible to download the exploit at git.sp0re.sh. It is declared as proof-of-concept.

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

The entry VDB-143451 is pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

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Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.2

VulDB Base Score: 5.3
VulDB Temp Score: 5.0
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: Path traversal
CWE: CWE-22
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: sp0re
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Timelineinfo

09/13/2019 🔍
10/14/2019 +31 days 🔍
10/14/2019 +0 days 🔍
10/15/2019 +1 days 🔍
01/08/2024 +1546 days 🔍

Sourcesinfo

Advisory: nazgul.ch
Status: Not defined

CVE: CVE-2019-16279 (🔍)
GCVE (CVE): GCVE-0-2019-16279
GCVE (VulDB): GCVE-100-143452
scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 10/15/2019 09:23 AM
Updated: 01/08/2024 01:42 PM
Changes: 10/15/2019 09:23 AM (36), 11/10/2019 01:37 PM (3), 11/10/2019 01:38 PM (23), 01/08/2024 01:42 PM (7)
Complete: 🔍
Committer: misc
Cache ID: 18:4B6:40

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