shadow Directory Tree toctou

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.7$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in shadow. Affected is an unknown function of the component Directory Tree Handler. Executing a manipulation can lead to toctou. This vulnerability is handled as CVE-2013-4235. It is possible to launch the attack on the local host. There is not any exploit available.

Detailsinfo

A vulnerability has been found in shadow (affected version not known) and classified as problematic. This vulnerability affects some unknown functionality of the component Directory Tree Handler. The manipulation with an unknown input leads to a toctou vulnerability. The CWE definition for the vulnerability is CWE-367. The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check. This can cause the product to perform invalid actions when the resource is in an unexpected state. As an impact it is known to affect integrity, and availability. CVE summarizes:

shadow: TOCTOU (time-of-check time-of-use) race condition when copying and removing directory trees

The bug was discovered 02/06/2015. The weakness was released 12/03/2019. This vulnerability was named CVE-2013-4235 since 06/12/2013. The attack needs to be approached locally. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 1761 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 305843 (SUSE SLED15 / SLES15 / openSUSE 15 : Recommended update for shadow (SUSE-SU-SUSE-RU-2026:1228-1)), which helps to determine the existence of the flaw in a target environment.

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 Tenable (305843). Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.7
VulDB Meta Temp Score: 4.7

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

NVD Base Score: 4.7
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: Toctou
CWE: CWE-367 / CWE-362
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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Nessus ID: 305843
Nessus Name: SUSE SLED15 / SLES15 / openSUSE 15 : Recommended update for shadow (SUSE-SU-SUSE-RU-2026:1228-1)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/12/2013 🔍
02/06/2015 +604 days 🔍
12/03/2019 +1761 days 🔍
12/04/2019 +1 days 🔍
04/10/2026 +2319 days 🔍

Sourcesinfo

Status: Not defined

CVE: CVE-2013-4235 (🔍)
GCVE (CVE): GCVE-0-2013-4235
GCVE (VulDB): GCVE-100-146596

Entryinfo

Created: 12/04/2019 08:48
Updated: 04/10/2026 17:15
Changes: 12/04/2019 08:48 (35), 12/04/2019 08:53 (17), 04/10/2026 17:15 (17)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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