VDB-40787 · CVE-2007-4998 · OSVDB 43228

Linux Kernel link following

CVSS Meta Temp Score
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Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
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8.4$5k-$25k0.00

Summaryinfo

A vulnerability was found in Linux Kernel. It has been classified as problematic. Affected is an unknown function. The manipulation leads to link following. This vulnerability is uniquely identified as CVE-2007-4998. No exploit exists.

Detailsinfo

A vulnerability was found in Linux Kernel (Operating System) (unknown version). It has been rated as critical. This issue affects an unknown code block. The manipulation with an unknown input leads to a link following vulnerability. Using CWE to declare the problem leads to CWE-59. The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

cp, when running with an option to preserve symlinks on multiple OSes, allows local, user-assisted attackers to overwrite arbitrary files via a symlink attack using crafted directories containing multiple source files that are copied to the same destination.

The weakness was disclosed 01/31/2008 (Website). It is possible to read the advisory at issues.rpath.com. The identification of this vulnerability is CVE-2007-4998 since 09/20/2007. Attacking locally is a requirement. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 11/06/2017).

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

The vulnerability is also documented in the vulnerability database at OSVDB (43228†). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.4
VulDB Meta Temp Score: 8.4

VulDB Base Score: 8.4
VulDB Temp Score: 8.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Link following
CWE: CWE-59
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

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

09/20/2007 🔍
01/31/2008 +133 days 🔍
01/31/2008 +0 days 🔍
03/17/2008 +46 days 🔍
03/16/2015 +2554 days 🔍
11/06/2017 +966 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: issues.rpath.com⛔
Status: Not defined
Confirmation: 🔍

CVE: CVE-2007-4998 (🔍)
GCVE (CVE): GCVE-0-2007-4998
GCVE (VulDB): GCVE-100-40787
OSVDB: 43228 - cp on Red Hat Linux Symlink Arbitrary File Overwrite

Entryinfo

Created: 03/16/2015 13:43
Updated: 11/06/2017 08:17
Changes: 03/16/2015 13:43 (42), 11/06/2017 08:17 (7)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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