CVE-2021-21350

Impact

The vulnerability may allow a remote attacker to execute arbitrary code only by manipulating the processed input stream. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types.

Patches

If you rely on XStream's default blacklist of the Security Framework, you will have to use at least version 1.4.16.

Workarounds

See workarounds for the different versions covering all CVEs.

References

See full information about the nature of the vulnerability and the steps to reproduce it in XStream's documentation for CVE-2021-21350.

Credits

The vulnerability was discovered and reported by threedr3am.

For more information

If you have any questions or comments about this advisory:

• Open an issue in XStream
• Contact us at XStream Google Group

Security Fix(es):

XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.16, there is a vulnerability which may allow a remote attacker to execute arbitrary code only by manipulating the processed input stream. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. If you rely on XStream's default blacklist of the Security Framework, you will have to use at least version 1.4.16.(CVE-2021-21350)

XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.16, there is a vulnerability which may allow a remote attacker to request data from internal resources that are not publicly available only by manipulating the processed input stream. No user is affected, who followed the recommendation to setup XStream s security framework with a whitelist limited to the minimal required types. If you rely on XStream s default blacklist of the Security Framework, you will have to use at least version 1.4.16.(CVE-2021-21349)

XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.16, there is a vulnerability which may allow a remote attacker to occupy a thread that consumes maximum CPU time and will never return. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. If you rely on XStream's default blacklist of the Security Framework, you will have to use at least version 1.4.16.(CVE-2021-21348)

XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.16, there is a vulnerability may allow a remote attacker to load and execute arbitrary code from a remote host only by manipulating the processed input stream. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. If you rely on XStream's default blacklist of the Security Framework, you will have to use at least version 1.4.16.(CVE-2021-21351)

XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.16, there is vulnerability which may allow a remote attacker to allocate 100% CPU time on the target system depending on CPU type or parallel execution of such a payload resulting in a denial of service only by manipulating the processed input stream. No user is affected who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. If you rely on XStream's default blacklist of the Security Framework, you will have to use at least version 1.4.16.(CVE-2021-21341)

XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.16, there is a vulnerability where the processed stream at unmarshalling time contains type information to recreate the formerly written objects. XStream creates therefore new instances based on these type information. An attacker can manipulate the processed input stream and replace or inject objects, that result in a server-side forgery request. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. If you rely on XStream's default blacklist of the Security Framework, you will have to use at least version 1.4.16.(CVE-2021-21342)

XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.16, there is a vulnerability where the processed stream at unmarshalling time contains type information to recreate the formerly written objects. XStream creates therefore new instances based on these type information. An attacker can manipulate the processed input stream and replace or inject objects, that result…

XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.16, there is a vulnerability which may allow a remote attacker to execute arbitrary code only by manipulating the processed input stream. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. If you rely on XStream's default blacklist of the Security Framework, you will have to use at least version 1.4.16.

XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.16, there is a vulnerability which may allow a remote attacker to execute arbitrary code only by manipulating the processed input stream. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. If you rely on XStream's default blacklist of the Security Framework, you will have to use at least version 1.4.16.

In XStream before version 1.4.16, there is a vulnerability which may allow a remote attacker to allocate 100% CPU time on the target system depending on CPU type or parallel execution of such a payload resulting in a denial of service only by manipulating the processed input stream (CVE-2021-21341).

In XStream before version 1.4.16, there is a vulnerability where the processed stream at unmarshalling time contains type information to recreate the formerly written objects. XStream creates therefore new instances based on these type information. An attacker can manipulate the processed input stream and replace or inject objects, that result in a server-side forgery request (CVE-2021-21342).

In XStream before version 1.4.16, there is a vulnerability where the processed stream at unmarshalling time contains type information to recreate the formerly written objects. XStream creates therefore new instances based on these type information. An attacker can manipulate the processed input stream and replace or inject objects, that result in the deletion of a file on the local host (CVE-2021-21343).

In XStream before version 1.4.16, there is a vulnerability which may allow a remote attacker to load and execute arbitrary code from a remote host only by manipulating the processed input stream (CVE-2021-21344).

In XStream before version 1.4.16, there is a vulnerability which may allow a remote attacker who has sufficient rights to execute commands of the host only by manipulating the processed input stream (CVE-2021-21345).

In XStream before version 1.4.16, there is a vulnerability which may allow a remote attacker to load and execute arbitrary code from a remote host only by manipulating the processed input stream (CVE-2021-21346).

In XStream before version 1.4.16, there is a vulnerability which may allow a remote attacker to load and execute arbitrary code from a remote host only by manipulating the processed input stream (CVE-2021-21347).

In XStream before version 1.4.16, there is a vulnerability which may allow a remote attacker to occupy a thread that consumes maximum CPU time and will never return (CVE-2021-21348).

In XStream before version 1.4.16, there is a vulnerability which may allow a remote attacker to request data from internal resources that are not publicly available only by manipulating the processed input stream (CVE-2021-21349).

In XStream before version 1.4.16, there is a vulnerability which may allow a remote attacker to execute arbitrary code only by manipulating the processed input stream (CVE-2021-21350).

In XStream before version 1.4.16, there is a vulnerability which may allow a remote attacker to load and execute arbitrary code from a remote host only by manipulating the processed input stream (CVE-2021-21351).

A vulnerability in XStream versions prior to 1.4.17 may allow a remote attacker has sufficient rights to execute commands of the host only by manipulating the processed input stream (CVE-2021-29505).

Theses vulnerabilities are mitigated if user followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types.

This update for xstream fixes the following issues:

• Upgrade to 1.4.16
• CVE-2021-21351: remote attacker to load and execute arbitrary code (bsc#1184796)
• CVE-2021-21349: SSRF can lead to a remote attacker to request data from internal resources (bsc#1184797)
• CVE-2021-21350: arbitrary code execution (bsc#1184380)
• CVE-2021-21348: remote attacker could cause denial of service by consuming maximum CPU time (bsc#1184374)
• CVE-2021-21347: remote attacker to load and execute arbitrary code from a remote host (bsc#1184378)
• CVE-2021-21344: remote attacker could load and execute arbitrary code from a remote host (bsc#1184375)
• CVE-2021-21342: server-side forgery (bsc#1184379)
• CVE-2021-21341: remote attacker could cause a denial of service by allocating 100% CPU time (bsc#1184377)
• CVE-2021-21346: remote attacker could load and execute arbitrary code (bsc#1184373)
• CVE-2021-21345: remote attacker with sufficient rights could execute commands (bsc#1184372)
• CVE-2021-21343: replace or inject objects, that result in the deletion of files on the local host (bsc#1184376)

This update was imported from the SUSE:SLE-15-SP2:Update update project.

This update for xstream fixes the following issues:

• Upgrade to 1.4.16
• CVE-2021-21351: remote attacker to load and execute arbitrary code (bsc#1184796)
• CVE-2021-21349: SSRF can lead to a remote attacker to request data from internal resources (bsc#1184797)
• CVE-2021-21350: arbitrary code execution (bsc#1184380)
• CVE-2021-21348: remote attacker could cause denial of service by consuming maximum CPU time (bsc#1184374)
• CVE-2021-21347: remote attacker to load and execute arbitrary code from a remote host (bsc#1184378)
• CVE-2021-21344: remote attacker could load and execute arbitrary code from a remote host (bsc#1184375)
• CVE-2021-21342: server-side forgery (bsc#1184379)
• CVE-2021-21341: remote attacker could cause a denial of service by allocating 100% CPU time (bsc#1184377)
• CVE-2021-21346: remote attacker could load and execute arbitrary code (bsc#1184373)
• CVE-2021-21345: remote attacker with sufficient rights could execute commands (bsc#1184372)
• CVE-2021-21343: replace or inject objects, that result in the deletion of files on the local host (bsc#1184376)

These are all security issues fixed in the xstream-1.4.18-1.1 package on the GA media of openSUSE Tumbleweed.

This update for xstream fixes the following issues:

• Upgrade to 1.4.16
• CVE-2021-21351: remote attacker to load and execute arbitrary code (bsc#1184796)
• CVE-2021-21349: SSRF can lead to a remote attacker to request data from internal resources (bsc#1184797)
• CVE-2021-21350: arbitrary code execution (bsc#1184380)
• CVE-2021-21348: remote attacker could cause denial of service by consuming maximum CPU time (bsc#1184374)
• CVE-2021-21347: remote attacker to load and execute arbitrary code from a remote host (bsc#1184378)
• CVE-2021-21344: remote attacker could load and execute arbitrary code from a remote host (bsc#1184375)
• CVE-2021-21342: server-side forgery (bsc#1184379)
• CVE-2021-21341: remote attacker could cause a denial of service by allocating 100% CPU time (bsc#1184377)
• CVE-2021-21346: remote attacker could load and execute arbitrary code (bsc#1184373)
• CVE-2021-21345: remote attacker with sufficient rights could execute commands (bsc#1184372)
• CVE-2021-21343: replace or inject objects, that result in the deletion of files on the local host (bsc#1184376)

This update for xstream fixes the following issues:

• Upgrade to 1.4.16
• CVE-2021-21351: remote attacker to load and execute arbitrary code (bsc#1184796)
• CVE-2021-21349: SSRF can lead to a remote attacker to request data from internal resources (bsc#1184797)
• CVE-2021-21350: arbitrary code execution (bsc#1184380)
• CVE-2021-21348: remote attacker could cause denial of service by consuming maximum CPU time (bsc#1184374)
• CVE-2021-21347: remote attacker to load and execute arbitrary code from a remote host (bsc#1184378)
• CVE-2021-21344: remote attacker could load and execute arbitrary code from a remote host (bsc#1184375)
• CVE-2021-21342: server-side forgery (bsc#1184379)
• CVE-2021-21341: remote attacker could cause a denial of service by allocating 100% CPU time (bsc#1184377)
• CVE-2021-21346: remote attacker could load and execute arbitrary code (bsc#1184373)
• CVE-2021-21345: remote attacker with sufficient rights could execute commands (bsc#1184372)
• CVE-2021-21343: replace or inject objects, that result in the deletion of files on the local host (bsc#1184376)

Zhihong Tian and Hui Lu found that XStream was vulnerable to remote code execution. A remote attacker could run arbitrary shell commands by manipulating the processed input stream. This issue affected only affected Ubuntu 20.10. (CVE-2020-26217)

It was discovered that XStream was vulnerable to server-side forgery attacks. A remote attacker could request data from internal resources that are not publicly available only by manipulating the processed input stream. This issue only affected Ubuntu 20.10. (CVE-2020-26258)

It was discovered that XStream was vulnerable to arbitrary file deletion on the local host. A remote attacker could use this to delete arbitrary known files on the host as long as the executing process had sufficient rights only by manipulating the processed input stream. This issue only affected Ubuntu 20.10. (CVE-2020-26259)

It was discovered that XStream was vulnerable to denial of service, arbitrary code execution, arbitrary file deletion and server-side forgery attacks. A remote attacker could cause any of those issues by manipulating the processed input stream. (CVE-2021-21341, CVE-2021-21342, CVE-2021-21343 CVE-2021-21344, CVE-2021-21345, CVE-2021-21346, CVE-2021-21347, CVE-2021-21348, CVE-2021-21349, CVE-2021-21350, CVE-2021-21351)

It was discovered that XStream incorrectly handled parsing of certain crafted XML documents. A remote attacker could possibly use this issue to read arbitrary files. (CVE-2016-3674)

Zhihong Tian and Hui Lu found that XStream was vulnerable to remote code execution. A remote attacker could run arbitrary shell commands by manipulating the processed input stream. (CVE-2020-26217)

It was discovered that XStream was vulnerable to server-side forgery attacks. A remote attacker could request data from internal resources that are not publicly available only by manipulating the processed input stream. (CVE-2020-26258)

It was discovered that XStream was vulnerable to arbitrary file deletion on the local host. A remote attacker could use this to delete arbitrary known files on the host as long as the executing process had sufficient rights only by manipulating the processed input stream. (CVE-2020-26259)

It was discovered that XStream was vulnerable to denial of service, arbitrary code execution, arbitrary file deletion and server-side forgery attacks. A remote attacker could cause any of those issues by manipulating the processed input stream. (CVE-2021-21341, CVE-2021-21342, CVE-2021-21343, CVE-2021-21344, CVE-2021-21345, CVE-2021-21346, CVE-2021-21347, CVE-2021-21348, CVE-2021-21349, CVE-2021-21350, CVE-2021-21351)