A vulnerability, which was classified as problematic, was found in Nmap up to 7.70 (Security Testing Software). Affected is an unknown functionality of the component TCP Connection Handler. The manipulation of the argument -sV with an unknown input leads to a resource management vulnerability. CWE is classifying the issue as CWE-399. This is going to have an impact on availability. CVE summarizes:

Nmap through 7.70, when the -sV option is used, allows remote attackers to cause a denial of service (stack consumption and application crash) via a crafted TCP-based service.

The bug was discovered 07/29/2018. The weakness was presented 07/29/2018 by code16 as confirmed blog post (Website). The advisory is available at code610.blogspot.com. The vendor was not involved in the coordination of the public release. This vulnerability is traded as CVE-2018-15173 since 08/07/2018. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 03/14/2020). This vulnerability has a historic impact due to its background and reception.

The vulnerability was handled as a non-public zero-day exploit for at least 14 days. During that time the estimated underground price was around $5k-$25k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 172470 (OpenSUSE Security Update for nmap (openSUSE-SU-2019:1462-1)).

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

Further details are available at code610.blogspot.com.

Productinfo

Type

• Security Testing Software

Name

• Nmap

Version

• 5.00
• 5.10BETA1
• 5.10BETA2
• 5.20
• 5.21
• 5.30BETA1
• 5.35DC1
• 5.50
• 5.51
• 5.59BETA1
• 5.61TEST1
• 5.61TEST2
• 5.61TEST4
• 5.61TEST5
• 6.00
• 6.01
• 6.20BETA1
• 6.25
• 6.40
• 6.45
• 6.46
• 6.47
• 6.49BETA1
• 6.49BETA2
• 6.49BETA3
• 6.49BETA4
• 6.49BETA5
• 6.49BETA6
• 7.00
• 7.01
• 7.10
• 7.11
• 7.12
• 7.25BETA1
• 7.25BETA2
• 7.30
• 7.31
• 7.40
• 7.50
• 7.60
• 7.70

CPE 2.3info

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CPE 2.2info

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