Apache HTTP Server up to 2.4.39 mod_remoteip null pointer dereference

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.9$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Apache HTTP Server up to 2.4.39. The impacted element is an unknown function of the component mod_remoteip. The manipulation leads to null pointer dereference. This vulnerability is referenced as CVE-2019-10097. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in Apache HTTP Server up to 2.4.39 (Web Server). It has been rated as critical. This issue affects an unknown functionality of the component mod_remoteip. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

In Apache HTTP Server 2.4.32-2.4.39, when mod_remoteip was configured to use a trusted intermediary proxy server using the "PROXY" protocol, a specially crafted PROXY header could trigger a stack buffer overflow or NULL pointer deference. This vulnerability could only be triggered by a trusted proxy and not by untrusted HTTP clients.

The weakness was published 09/26/2019 (Website). The advisory is shared at httpd.apache.org. The identification of this vulnerability is CVE-2019-10097 since 03/26/2019. The attack may be initiated remotely. The successful exploitation needs a simple authentication. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 12/28/2023).

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

Similar entries are available at VDB-124447, VDB-130341, VDB-130329 and VDB-130330. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.9

VulDB Base Score: 4.7
VulDB Temp Score: 4.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.2
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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: 🔍

Timelineinfo

03/26/2019 🔍
09/26/2019 +184 days 🔍
09/27/2019 +1 days 🔍
12/28/2023 +1553 days 🔍

Sourcesinfo

Vendor: apache.org

Advisory: RHSA-2019:4126
Status: Not defined

CVE: CVE-2019-10097 (🔍)
GCVE (CVE): GCVE-0-2019-10097
GCVE (VulDB): GCVE-100-142325
See also: 🔍

Entryinfo

Created: 09/27/2019 08:59
Updated: 12/28/2023 12:03
Changes: 09/27/2019 08:59 (56), 09/09/2020 22:03 (1), 12/28/2023 12:03 (3)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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